See http://webwork.maa.org/wiki/SampleProblem2
The relevant section of the code is at the bottom of that example and
I've repeated it here. It is very important that the last line "END_SOLUTION"
is left justified and that there is nothing else on the line -- not even spaces.
SOLUTION(EV3(<<'END_SOLUTION'));
$PAR SOLUTION $PAR
${BBOLD}Part 1$EBOLD
$BR
The derivative of \(f(t) = $func\) is
\(f'(t) = $funcDeriv\), so the slope of
the line is \(f'(2) = $m\). Then when
\(t = 2\) we have \(f(2) = $y0\), so the
equation of the line is \(y = $line\).
$PAR
${BBOLD}Part 2$EBOLD
$BR
This problem is clearly easy.
$PAR
${BBOLD}Part 3$EBOLD
$BR
A careful study of one WeBWorK
instructor showed that 100% of all
respondents thought this statement
was true.
END_SOLUTION
Hope this helps.
-- Mike