Difference between revisions of "InequalityAnswer1"

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<p style="font-size: 120%;font-weight:bold">This problem has been replaced with [https://openwebwork.github.io/pg-docs/sample-problems/Algebra/InequalityAnswer.html a newer version of this problem]</p>
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<h2>Answer is an Inequality</h2>
  
<h2>Answer is an Inequality</h2>
   
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This PG code shows a question whose answer is an inequality.
  
This PG code shows a question whose answer is an inequality.
 
</p>
  
</p>
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* Download file: [[File:InequalityAnswer1.txt]] (change the file extension from txt to pg when you save it)
  
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* File location in OPL: [https://github.com/openwebwork/webwork-open-problem-library/blob/master/OpenProblemLibrary/FortLewis/Authoring/Templates/Algebra/InequalityAnswer1.pg FortLewis/Authoring/Templates/Algebra/InequalityAnswer1.pg]
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* File location in NPL: <code>FortLewis/Authoring/Templates/Algebra/InequalityAnswer1.pg</code>
  
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* PGML location in OPL: [https://github.com/openwebwork/webwork-open-problem-library/blob/master/OpenProblemLibrary/FortLewis/Authoring/Templates/Algebra/InequalityAnswer1_PGML.pg FortLewis/Authoring/Templates/Algebra/InequalityAnswer1_PGML.pg]
   
 
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<p>
  
<p>
 
<b>Setup:</b>
 
<b>Setup:</b>
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We require students to use inequalities by using <code>Context("Inequalities-Only")</code>. If we had used <code>Context("Inequalities")</code> instead, then students could also enter their answer using interval notation. For more details, please see [http://webwork.maa.org/pod/pg_TRUNK/macros/contextInequalities.pl.html contextInequalities.pl.html]
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We require students to use inequalities by using <code>Context("Inequalities-Only")</code>. If we had used <code>Context("Inequalities")</code> instead, then students could also enter their answer using interval notation. For more details, please see [http://webwork.maa.org/pod/pg/macros/contextInequalities.html contextInequalities.pl]
 
</p>
  
</p>
 
<p>
  
<p>

Latest revision as of 04:46, 18 July 2023

This article has been retained as a historical document. It is not up-to-date and the formatting may be lacking. Use the information herein with caution.

This problem has been replaced with a newer version of this problem


Answer is an Inequality

Click to enlarge

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


Templates by Subject Area

PG problem file Explanation

Problem tagging data

Problem tagging: 

DOCUMENT();

loadMacros(
"PGstandard.pl",
"MathObjects.pl",
"contextInequalities.pl",
"AnswerFormatHelp.pl",
);

TEXT(beginproblem());

Initialization: We must load contextInequalities.pl. 

Context("Inequalities-Only");
Context()->flags->set(formatStudentAnswer=>'parsed');

$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:

Templates by Subject Area

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