srw2_2_7.pg

## DESCRIPTION
## Algebra
## ENDDESCRIPTION

## Tagged by cmd6a 8/6/06

## DBsubject(Algebra)
## DBchapter(Functions)
## DBsection(Domain and range)
## Institution(ASU)
## MLT(algebra_functions_domain_range_graph_continuous)
## Level(2)
## Static(1)
## KEYWORDS('algebra','function','domain','range','graph')

DOCUMENT();        # This should be the first executable line in the problem.

loadMacros(
  "PGstandard.pl",
  "PGchoicemacros.pl",
  "PGasu.pl",
  "extraAnswerEvaluators.pl",
  "PGcourse.pl"
);

TEXT(beginproblem());
$showPartialCorrectAnswers = 0;


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",
    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
What is its range? \{ans_rule(25)\}
$BR
$BBOLD
Note: $EBOLD
Write the answer in interval notation.
EOT

$ans1=-3;
$ans2=3;
$ans3=-1;
$ans4=2;

ANS(interval_cmp("[$ans1,$ans2]"));
ANS(interval_cmp("[$ans3,$ans4]"));

ENDDOCUMENT();        # This should be the last executable line in the problem.