Add AI generated alt tags to the problems from Rogowski for ADA compliance

OpenProblemLibrary/274/Hyp_Trig/prob4.pg

@@ -45,15 +45,25 @@ plot_functions($graph5, $f6);
 $ml = new_match_list();
 # enter questions and matching answers
 $ml -> qa (
-image(insertGraph($graph0)), 
+image(insertGraph($graph0),
+    alt=>"Graph of cosh(x), a U-shaped curve symmetric about the y-axis with minimum value 1 at x = 0."
+), 
 " \(\cosh(x)\)",
-image(insertGraph($graph1)), 
+image(insertGraph($graph1),
+    alt=>"Graph of arctanh(x) showing a vertical S-shaped curve with vertical asymptotes at x = -1 and x = 1"
+), 
 " \(\sinh(x)\)", 
-image(insertGraph($graph2)),
+image(insertGraph($graph2),
+    alt=>"Graph of hyperbolic cosine function, symmetric U-shaped curve with minimum value 1 at x = 0."
+),
 " \(\tanh(x)\)", 
-image(insertGraph($graph3)),
+image(insertGraph($graph3),
+    alt=>"Graph of hyperbolic cosine function, symmetric about the y-axis with minimum value 1 at x = 0, increasing exponentially in both directions."
+),
 " \(\tanh^{-1}(x)\)", 
-image(insertGraph($graph5)),
+image(insertGraph($graph5),
+    alt=>"Graph of tanh(x), an odd function with horizontal asymptotes at y = 1 and y = -1, passing through the origin with an S-shaped curve."
+),
 " \(\sinh^{-1}(x)\)"  ); 
 
 $ml ->choose(5);

OpenProblemLibrary/274/Hyp_Trig/prob4c.pg

@@ -46,15 +46,25 @@ plot_functions($graph5, $f6);
 $ml = new_match_list();
 # enter questions and matching answers
 $ml -> qa (
-image(insertGraph($graph0)), 
+image(insertGraph($graph0),
+    alt=>"Graph of cosh(x) showing a U-shaped curve with minimum value 1 at x = 0, symmetric about the y-axis"
+), 
 " \(\cosh(x)\)",
-image(insertGraph($graph1)), 
+image(insertGraph($graph1),
+    alt=>"Graph of arctanh(x) showing a vertical S-curve with vertical asymptotes at x = -1 and x = 1, passing through the origin."
+), 
 " \(\sinh(x)\)", 
-image(insertGraph($graph2)),
+image(insertGraph($graph2),
+    alt=>"Graph of cosh(x), a smooth U-shaped curve with minimum value 1 at x = 0, symmetric about the y-axis."
+),
 " \(\tanh(x)\)", 
-image(insertGraph($graph3)),
+image(insertGraph($graph3),
+    alt=>"Graph of hyperbolic cosine function, an even U-shaped curve with minimum value 1 at x = 0."
+),
 " \(\tanh^{-1}(x)\)", 
-image(insertGraph($graph5)),
+image(insertGraph($graph5),
+    alt=>"Graph of tanh⁻¹(x), showing a curve passing through the origin with vertical asymptotes at x = -1 and x = 1, increasing throughout its domain."
+),
 " \(\sinh^{-1}(x)\)"  ); 
 
 $ml ->choose(5);

OpenProblemLibrary/274/Laplace4/prob44.pg

@@ -39,7 +39,9 @@ $f5 = "1 for x in <4,5> using color:red and weight:2";
 plot_functions($graph3, $f1);
 plot_functions($graph3, $f3);
 plot_functions($graph3, $f5);
-$g = image(insertGraph($graph3));
+$g = image(insertGraph($graph3),
+    alt=>"Periodic square wave with value 1 on intervals [0,1], [2,3], and [4,5], and value 0 elsewhere, with period 2."
+);
 
 $func = "\begin{cases}
             1, & 0 \leq t < 1 \cr

OpenProblemLibrary/274/Laplace4/prob45.pg

@@ -45,7 +45,9 @@ plot_functions($graph3, $f3);
 plot_functions($graph3, $f4);
 plot_functions($graph3, $f5);
 plot_functions($graph3, $f6);
-$g = image(insertGraph($graph3));
+$g = image(insertGraph($graph3),
+    alt=>"Triangular wave function with period 1, showing repeated peaks at height 0.5 occurring at t = 0.5, 1.5, and 2.5, with vertices touching the x-axis at integer values."
+);
 
 $func = "\begin{cases}
             t, & 0 \leq t < 1/2 \cr

OpenProblemLibrary/274/Laplace4/prob46.pg

@@ -36,7 +36,9 @@ $f3 = "sin(pi*x) for x in <2,3> using color:red and weight:2";
 plot_functions($graph3, $f1);
 plot_functions($graph3, $f2);
 plot_functions($graph3, $f3);
-$g = image(insertGraph($graph3));
+$g = image(insertGraph($graph3),
+    alt=>"Graph of rectified sine wave R(t) showing three periods of |sin(πt)| from x=0 to x=3, alternating above and below the x-axis."
+);
 
 BEGIN_TEXT
 

OpenProblemLibrary/ASU-topics/set119LPGraphical/p1.pg

@@ -74,7 +74,9 @@ $graph1->lb($label1,$label2,$label3,$label4);
 
 BEGIN_TEXT
 
-\{ image(insertGraph($graph1)) \} 
+\{ image(insertGraph($graph1),
+    alt=>"Two intersecting lines dividing the plane into four regions labeled A, B, C, and D, representing a system of linear inequalities."
+) \} 
 
 $PAR
 

OpenProblemLibrary/ASU-topics/setAlgebraFunctions/beth2algfun.pg

@@ -32,7 +32,9 @@ $showPartialCorrectAnswers = 1;
 
 TEXT(EV2(<<EOT));
 The functions \(f(x)\) and \(g(x)\) are given in the graph.
-$PAR \{ image("srw2_8_23.gif", width=>298, height=>283) \} $PAR
+$PAR \{ image("srw2_8_23.gif", width=>298, height=>283,
+    alt=>"Graph showing two functions f(x) and g(x) with f as a line segment and g as a curved segment, intersecting near the origin on a coordinate plane."
+) \} $PAR
 $BR
 Find the corresponding function values.  
 If there is no function value, type $BITALIC DNE$EITALIC in the answer blank.

OpenProblemLibrary/ASU-topics/setAlgebraFunctions/beth2algfunb.pg

@@ -63,7 +63,9 @@ The functions \(f(x)\) and \(g(x)\) are given in the graph below (\(f(x)\) in re
 and \(g(x)\) in blue).
 $BR
 $BCENTER
- \{ image(insertGraph($graph)) \} 
+ \{ image(insertGraph($graph),
+    alt=>"Graph showing two piecewise linear functions: f(x) in red and g(x) in blue, plotted on coordinate axes from approximately x = -4 to x = 8."
+) \} 
 $BR
 $BBOLD Note: $EBOLD Click on the graph to view a larger graph
 $ECENTER

OpenProblemLibrary/ASU-topics/setAreaBetweenCurves/osu_in_19_14.pg

@@ -162,7 +162,8 @@ The region enclosed by the two curves is shown below.
 $PAR
 $BCENTER
 \{ image( insertGraph( $gr ), tex_size=>250, height=>200, width=>200,
-	  ) \}
+    alt=>"Two curves intersecting at two points, with the enclosed region split vertically into areas A1 and A2 for integration with respect to x."
+) \}
 $ECENTER
 The curves \( x =  y^2 -$a\) and \( x = $c - $by \)   intersect when 
 \[  y^2 -$a  = $c -  $by \implies
@@ -178,7 +179,8 @@ To find the area by integrating with respect to \(x \), we need to split the reg
 
 $BCENTER
 \{ image( insertGraph( $gr1 ), tex_size=>250, height=>200, width=>200,
-	  ) \}
+    alt=>"Region bounded by parabola x = y² − a and line x = c − by, split into areas A1 and A2 for integration with respect to x."
+) \}
 $ECENTER
 The area A1 is given by 
 \[ A1 = \int_{-$a}^{$x2} \left(\sqrt{x+$a}-(-\sqrt{x+$a}\right) \, dx

OpenProblemLibrary/ASU-topics/setCalculus/stef/stef12_6p1/stef12_6p1.pg

@@ -75,17 +75,29 @@ $BR
 Match the equation with its graph labeled A-H.  You may click on any image to get a larger view.
 
 $BR$BR
-${BBOLD}A.$EBOLD$SPACE\{ image($shuffled_subset_of_images[0], width => 200, height => 200, extra_html_tags => 'align="middle"') \}
+${BBOLD}A.$EBOLD$SPACE\{ image($shuffled_subset_of_images[0], width => 200, height => 200, extra_html_tags => 'align="middle"',
+    alt=>"Graph of a quadric surface for matching with its equation"
+) \}
 $SPACE$SPACE
-${BBOLD}B.$EBOLD$SPACE\{ image($shuffled_subset_of_images[1], width => 200, height => 200, extra_html_tags => 'align="middle"') \}
+${BBOLD}B.$EBOLD$SPACE\{ image($shuffled_subset_of_images[1], width => 200, height => 200, extra_html_tags => 'align="middle"',
+    alt=>"Graph of a quadric surface or three-dimensional mathematical function for equation matching exercise"
+) \}
 $BR
-${BBOLD}C.$EBOLD$SPACE\{ image($shuffled_subset_of_images[2], width => 200, height => 200, extra_html_tags => 'align="middle"') \}
+${BBOLD}C.$EBOLD$SPACE\{ image($shuffled_subset_of_images[2], width => 200, height => 200, extra_html_tags => 'align="middle"',
+    alt=>"Graph matching exercise showing six labeled coordinate plane graphs A through F for identifying equations of curves"
+) \}
 $SPACE$SPACE
-${BBOLD}D.$EBOLD$SPACE\{ image($shuffled_subset_of_images[3], width => 200, height => 200, extra_html_tags => 'align="middle"') \}
+${BBOLD}D.$EBOLD$SPACE\{ image($shuffled_subset_of_images[3], width => 200, height => 200, extra_html_tags => 'align="middle"',
+    alt=>"Graph for equation matching exercise, one of six function plots labeled A through F"
+) \}
 $BR
-${BBOLD}E.$EBOLD$SPACE\{ image($shuffled_subset_of_images[4], width => 200, height => 200, extra_html_tags => 'align="middle"') \}
+${BBOLD}E.$EBOLD$SPACE\{ image($shuffled_subset_of_images[4], width => 200, height => 200, extra_html_tags => 'align="middle"',
+    alt=>"Graph matching exercise with six labeled plots A through F showing various mathematical functions"
+) \}
 $SPACE$SPACE
-${BBOLD}F.$EBOLD$SPACE\{ image($shuffled_subset_of_images[5], width => 200, height => 200, extra_html_tags => 'align="middle"') \}
+${BBOLD}F.$EBOLD$SPACE\{ image($shuffled_subset_of_images[5], width => 200, height => 200, extra_html_tags => 'align="middle"',
+    alt=>"Graph matching exercise with six labeled graphs A through F showing various mathematical functions"
+) \}
 
 
 $BR
@@ -105,6 +117,10 @@ ENDDOCUMENT();
 $BR
 \{ ans_rule(5)\} ${BBOLD}7.$EBOLD$SPACE $subset_of_questions[6]  $BR
 \{ ans_rule(5)\} ${BBOLD}8.$EBOLD$SPACE $subset_of_questions[7]   $BR
-${BBOLD}G.$EBOLD$SPACE\{ image($shuffled_subset_of_images[6], width => 200, height => 200, extra_html_tags => 'align="middle"') \}
+${BBOLD}G.$EBOLD$SPACE\{ image($shuffled_subset_of_images[6], width => 200, height => 200, extra_html_tags => 'align="middle"',
+    alt=>"Formatting code for image alignment, not a mathematical diagram."
+) \}
 $SPACE$SPACE
-${BBOLD}H.$EBOLD$SPACE\{ image($shuffled_subset_of_images[7], width => 200, height => 200, extra_html_tags => 'align="middle"') \}
+${BBOLD}H.$EBOLD$SPACE\{ image($shuffled_subset_of_images[7], width => 200, height => 200, extra_html_tags => 'align="middle"',
+    alt=>"Placeholder for a mathematical graph or diagram in a matching exercise"
+) \}

OpenProblemLibrary/ASU-topics/setCalculus/stef/stef16_1p1/stef16_1p1.pg

@@ -76,13 +76,21 @@ $BR
 
 Match the plots labeled A - D with the vector fields \(\mathbf{F} \) below.  
 $BR$BR
-${BBOLD}A.$EBOLD$SPACE\{ image($shuffled_subset_of_images[0], width => 400, height => 400, extra_html_tags => 'align="middle"') \}
+${BBOLD}A.$EBOLD$SPACE\{ image($shuffled_subset_of_images[0], width => 400, height => 400, extra_html_tags => 'align="middle"',
+    alt=>"Vector field plot showing arrows indicating direction and magnitude of a two-dimensional vector field across the xy-plane."
+) \}
 $BR
-${BBOLD}B.$EBOLD$SPACE\{ image($shuffled_subset_of_images[1], width => 400, height => 400, extra_html_tags => 'align="middle"') \}
+${BBOLD}B.$EBOLD$SPACE\{ image($shuffled_subset_of_images[1], width => 400, height => 400, extra_html_tags => 'align="middle"',
+    alt=>"Vector field plot showing arrows indicating direction and magnitude of vectors across a two-dimensional region."
+) \}
 $BR
-${BBOLD}C.$EBOLD$SPACE\{ image($shuffled_subset_of_images[2], width => 400, height => 400, extra_html_tags => 'align="middle"') \}
+${BBOLD}C.$EBOLD$SPACE\{ image($shuffled_subset_of_images[2], width => 400, height => 400, extra_html_tags => 'align="middle"',
+    alt=>"Vector field plot showing arrows indicating direction and magnitude of vectors at points in the xy-plane."
+) \}
 $BR
-${BBOLD}D.$EBOLD$SPACE\{ image($shuffled_subset_of_images[3], width => 400, height => 400, extra_html_tags => 'align="middle"') \}
+${BBOLD}D.$EBOLD$SPACE\{ image($shuffled_subset_of_images[3], width => 400, height => 400, extra_html_tags => 'align="middle"',
+    alt=>"Vector field plot showing arrows indicating direction and magnitude of a two-dimensional vector field across a coordinate plane."
+) \}
 $BR
 $BR
 \{ ans_rule(5)\} ${BBOLD}1.$EBOLD$SPACE $subset_of_questions[0]  $BR

OpenProblemLibrary/ASU-topics/setCalculus/stef/stef16_1p2/stef16_1p2.pg

@@ -77,13 +77,21 @@ Match the functions \( f \) with the plots of their gradient
 vector fields labeled A-D.
 
 $BR$BR
-${BBOLD}A.$EBOLD$SPACE\{ image($shuffled_subset_of_images[0], width => 400, height => 400, extra_html_tags => 'align="middle"') \}
+${BBOLD}A.$EBOLD$SPACE\{ image($shuffled_subset_of_images[0], width => 400, height => 400, extra_html_tags => 'align="middle"',
+    alt=>"Gradient vector field plot showing arrows indicating direction and magnitude of the gradient of a function across a two-dimensional region."
+) \}
 $BR
-${BBOLD}B.$EBOLD$SPACE\{ image($shuffled_subset_of_images[1], width => 400, height => 400, extra_html_tags => 'align="middle"') \}
+${BBOLD}B.$EBOLD$SPACE\{ image($shuffled_subset_of_images[1], width => 400, height => 400, extra_html_tags => 'align="middle"',
+    alt=>"Gradient vector field plot showing arrows indicating direction and magnitude of the gradient of a function across a two-dimensional region."
+) \}
 $BR
-${BBOLD}C.$EBOLD$SPACE\{ image($shuffled_subset_of_images[2], width => 400, height => 400, extra_html_tags => 'align="middle"') \}
+${BBOLD}C.$EBOLD$SPACE\{ image($shuffled_subset_of_images[2], width => 400, height => 400, extra_html_tags => 'align="middle"',
+    alt=>"Gradient vector field plot showing arrows indicating direction and magnitude of gradient vectors across a two-dimensional region."
+) \}
 $BR
-${BBOLD}D.$EBOLD$SPACE\{ image($shuffled_subset_of_images[3], width => 400, height => 400, extra_html_tags => 'align="middle"') \}
+${BBOLD}D.$EBOLD$SPACE\{ image($shuffled_subset_of_images[3], width => 400, height => 400, extra_html_tags => 'align="middle"',
+    alt=>"Gradient vector field plot showing arrows indicating direction and magnitude of the gradient of a function across a rectangular region."
+) \}
 $BR
 $BR
 \{ ans_rule(5)\} ${BBOLD}1.$EBOLD$SPACE $subset_of_questions[0]  $BR

OpenProblemLibrary/ASU-topics/setDemos/flygraph.pg

@@ -66,7 +66,9 @@ $graph->lb($label_f,$label_fp,$label_fpp);
 
 # This inserts the graph and then asks three questions:
 BEGIN_TEXT
-\{ image(insertGraph($graph)) \} $PAR
+\{ image(insertGraph($graph),
+    alt=>"Three curves labeled A (blue), B (red), and C (green) showing a function and its first and second derivatives on the same coordinate plane."
+) \} $PAR
 Identify the graphs A (blue), B( red) and 
 C (green) as the graphs of a function and its
 derivatives (click on the graph to see an enlarged image):$PAR

OpenProblemLibrary/ASU-topics/setExponentialFunctions/jj2.pg

@@ -82,11 +82,19 @@ $mc = new_multiple_choice();
 $mc->qa("Make a graph of \(A(t)\).  Which graph most closely resembles the graph of \(A(t)\)?".
 "$BR $BBOLD Note:$EBOLD you can click on the graphs to get a larger view.$BR$BR".
 "Each graph goes to $xd on the \(x\)-axis and ".($targ*1200)." on the \(y\)-axis.$BR$BR",
-image(insertGraph($gr)));
-
-$mc->extra(image(insertGraph($gr2)),
-image(insertGraph($gr3)),
-image(insertGraph($gr4)));
+image(insertGraph($gr),
+    alt=>"Graph of exponential growth starting at y = $a, curving upward with increasing steepness as x approaches $xd."
+));
+
+$mc->extra(image(insertGraph($gr2),
+    alt=>"Exponential growth curve starting at y = $a, increasing and concave up as x increases to $xd."
+),
+image(insertGraph($gr3),
+    alt=>"Graph of exponential growth function A(t) starting at initial value and increasing with upward concavity over time."
+),
+image(insertGraph($gr4),
+    alt=>"Exponential growth curve starting at initial value, increasing and concave up, representing compound interest over time."
+));
 
 #
 # Now the problem text itself, with ans_rule's to indicate where the

OpenProblemLibrary/ASU-topics/setExponentialFunctions/jj3.pg

@@ -67,10 +67,18 @@ plot_functions( $graph4,
 }
 
 $ml = new_match_list();
-$ml->qa("\($a^x\)", image(insertGraph($graph1)),
-"\($a^{-x}\)", image(insertGraph($graph2)),
-"\(-$a^x\)", image(insertGraph($graph3)),
-"\($a^x+$b\)", image(insertGraph($graph4)));
+$ml->qa("\($a^x\)", image(insertGraph($graph1),
+    alt=>"Exponential decay curve y = a^(-x) decreasing from upper left to lower right, approaching the x-axis as x increases."
+),
+"\($a^{-x}\)", image(insertGraph($graph2),
+    alt=>"Exponential decay curve of a^(-x), decreasing from upper left to lower right, approaching the x-axis as x increases."
+),
+"\(-$a^x\)", image(insertGraph($graph3),
+    alt=>"Exponential function y = a^x + b shifted upward, with horizontal dashed line indicating the asymptote at y = b."
+),
+"\($a^x+$b\)", image(insertGraph($graph4),
+    alt=>"Exponential function shifted up, showing y = a^x + b with horizontal asymptote at y = b indicated by dashed segments."
+));
 $ml->choose(4);
 
 BEGIN_TEXT

OpenProblemLibrary/ASU-topics/setFunctions/jj1.pg

@@ -59,7 +59,9 @@ $f = FEQ("$c*(((2*(x-$a)/($b-$a)-1))**3 - 3*((2*(x-$a)/($b-$a)-1))) for x in <-$
 BEGIN_TEXT
 Consider the function shown in the following graph.
 $BR
-\{ image(insertGraph($graph)) \} $PAR
+\{ image(insertGraph($graph),
+    alt=>"Graph of a sinusoidal function oscillating between a positive maximum and negative minimum, used to identify intervals where the function is decreasing."
+) \} $PAR
 $BBOLD Note: $EBOLD you can click on the graph to enlarge it.
 $PAR
 Where is the function decreasing?

OpenProblemLibrary/ASU-topics/setFunctions/jj2.pg

@@ -31,7 +31,9 @@ TEXT(EV2(<<EOT));
 $BBOLD Click on the graph to view the enlarged graph $EBOLD
 $BR
 For the function given in the graph
-$PAR \{ image("c4s2p7.gif") \} $PAR
+$PAR \{ image("c4s2p7.gif",
+    alt=>"Graph of a continuous function on interval [-3,3] with local maximum near x=-1, local minimum near x=2, decreasing on (-3,-1) and (2,3)."
+) \} $PAR
 $BR
 the function is decreasing in the interval(s) \{ans_rule(25)\}.
 $BR

OpenProblemLibrary/ASU-topics/setFunctions/rich1.pg

@@ -58,10 +58,20 @@ $f = "$c/(1+$a*exp(-$b*x)) for x in <0,38> using color:blue and weight:2";
 plot_functions($graph2, $f); 
 
 $m = new_multiple_choice();
-$m->qa( "",image(insertGraph($graph0)) );
-$m->extra(image(insertGraph($graph1)), 
-image(insertGraph($graph2)),
-image(insertGraph($graph3)), image(insertGraph($gr)) );
+$m->qa( "",image(insertGraph($graph0),
+    alt=>"Logistic growth curve starting near zero, rising with increasing steepness, then leveling off toward a horizontal asymptote around y equals 9.5."
+) );
+$m->extra(image(insertGraph($graph1),
+    alt=>"Logistic growth curve starting near zero, increasing with decreasing rate, and leveling off near a horizontal asymptote around y equals 9.5."
+), 
+image(insertGraph($graph2),
+    alt=>"Logistic growth curve starting near zero, increasing with an S-shaped pattern, and leveling off to a horizontal asymptote around y equals 9.5."
+),
+image(insertGraph($graph3),
+    alt=>"Logistic growth curve starting near zero, increasing with steep middle section, then leveling off to approach a horizontal asymptote around y equals 9.5."
+), image(insertGraph($gr),
+    alt=>"Logistic growth curve starting near zero, increasing with steep middle section, then leveling off to approach a horizontal asymptote around y equals 9.5."
+) );
 
 
 BEGIN_TEXT

OpenProblemLibrary/ASU-topics/setFunctions/rich2.pg

@@ -106,11 +106,23 @@ for ($j=1; $j<=7; $j++) {
 $gr2->stamps(closed_circle($x[$j],$y[$j],'red'));  }
 
 $m = new_multiple_choice();
-$m->qa( "Which graph best represents the data?",image(insertGraph($graph[$i])) );
-$m->extra(image(insertGraph($graph[$arr[0]])), 
-image(insertGraph($graph[$arr[1]])), image(insertGraph($graph[$arr[2]])), 
-image(insertGraph($graph[$arr[3]])), 
-image(insertGraph($gr2))   );
+$m->qa( "Which graph best represents the data?",image(insertGraph($graph[$i]),
+    alt=>"Scatter plot showing seven data points of temperature T versus time t, with a squiggle break on the y-axis indicating a truncated scale."
+) );
+$m->extra(image(insertGraph($graph[$arr[0]]),
+    alt=>"Scatter plot showing temperature readings in Fahrenheit versus time in hours, with seven data points plotted as red dots on a coordinate grid."
+), 
+image(insertGraph($graph[$arr[1]]),
+    alt=>"Scatter plot showing temperature readings in degrees Fahrenheit versus time in hours, with data points plotted from midnight to noon."
+), image(insertGraph($graph[$arr[2]]),
+    alt=>"Scatter plot showing temperature readings in degrees Fahrenheit versus time in hours, with data points plotted at 2-hour intervals from midnight to noon."
+), 
+image(insertGraph($graph[$arr[3]]),
+    alt=>"Scatter plot showing temperature readings in degrees Fahrenheit versus time in hours, with data points recorded every 2 hours from midnight to noon."
+), 
+image(insertGraph($gr2),
+    alt=>"Scatter plot showing temperature readings in Fahrenheit versus time in hours, with seven data points marked from midnight to noon."
+)   );
 
 
 BEGIN_TEXT

OpenProblemLibrary/ASU-topics/setFunctions/srw2_2_7.pg

@@ -31,7 +31,9 @@ TEXT(EV2(<<EOT));
 $BBOLD Click on the graph to view the enlarged graph $EBOLD
 $BR
 Consider the function given in the following graph.
-$PAR \{ image("c2s2p7.gif") \} $PAR
+$PAR \{ image("c2s2p7.gif",
+    alt=>"Graph of a piecewise function on the interval [-3, 3] with range [-1, 2], showing connected line segments or curves."
+) \} $PAR
 $BR
 What is its domain? \{ans_rule(25)\}
 $BR