# Difference between revisions of "InequalityAnswer1"

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This PG code shows a question whose answer is an inequality.

PG problem file Explanation

Problem tagging:

DOCUMENT();

"PGstandard.pl",
"MathObjects.pl",
"contextInequalities.pl",
);

TEXT(beginproblem());

Context("Inequalities-Only");

$a = random(3,9,1);$ineq = "-$a x \leq 10"; # TeX$answer = Compute("x >= -10 / $a"); Setup: We require students to use inequalities by using Context("Inequalities-Only"). If we had used Context("Inequalities") instead, then students could also enter their answer using interval notation. For more details, please see contextInequalities.pl We use formatStudentAnswer=>'parsed' and Compute() so that the student's answer are left as fractions rather than reduced to decimals. Context()->texStrings; BEGIN_TEXT Solve the inequality $$\displaystyle ineq$$. Enter your answer using inequality notation.$BR
$BR \{ ans_rule(40) \} \{ AnswerFormatHelp("inequalities") \} END_TEXT Context()->normalStrings; Main Text:$showPartialCorrectAnswers = 1;

ANS( $answer->cmp() ); Answer Evaluation: Context()->texStrings; BEGIN_SOLUTION${PAR}SOLUTION:\${PAR}
Solution explanation goes here.
END_SOLUTION
Context()->normalStrings;

COMMENT("MathObject version.");

ENDDOCUMENT();

Solution: