Answer is an Equation

An equation defining a function

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Complete Code

Download file: EquationDefiningFunction.pg

POD for Macro Files

PG problem file

Explanation

DOCUMENT();

loadMacros('PGstandard.pl', 'PGML.pl', 'parserAssignment.pl', 'PGcourse.pl');

Preamble

The macro file parserAssignment.pl needs to be included.

Context()->variables->are(x => 'Real', y => 'Real');
parser::Assignment->Allow;
parser::Assignment->Function('f');

$eqn = Formula('y = 5x + 2');
$fun = Formula('f(x) = 3x^2 + 2x');

Setup

To allow assignments in the current context call parser::Assignment->Allow. To allow students to enter an assignment in which the left side is a function use parser::Assignment->Function('f'). For more details, see parserAssignment.pl.

BEGIN_PGML
Enter [`[$eqn]`]: [_]{$eqn}{10}

Enter [`[$fun]`]: [_]{$fun}{10}
END_PGML

Statement

This is the problem statement in PGML. 
BEGIN_PGML_SOLUTION
Solution explanation goes here.
END_PGML_SOLUTION

ENDDOCUMENT();

Solution

A solution should be provided here.