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unit1.tex
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unit1.tex
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\documentclass{ximera}
%% handout
%% nohints
\title{This is again Unit 1}
\begin{document}
\begin{abstract}
First things come first.
\end{abstract}
%\youtube{http://www.youtube.com/watch?v=GVlMFJ5TTmg}
\begin{exercise}
Given that $s(k)=-k^2-4 k+2$, evaluate $s(4.5)$. Express your answer in decimal notation.
\begin{solution}
\begin{hint}
$s(4.5)=-(4.5)^2-4 (4.5)+2$.
\end{hint}
\begin{hint}
$s(4.5)=-36.25$.
\end{hint}
The value of the function $s(k)=-k^2-4 k+2$, evaluated at $k=4.5$, is \answer{-36.25}.
\end{solution}
Here is some text after the first problem.
\end{exercise}
\begin{exercise}
Let's again find a function $f(x)$ so that $f(2) = 4$.
\begin{solution}
\begin{hint}
Try a linear function.
\end{hint}
An example is $f(x) = $ \begin{expression-answer}
function validator(f) {
if (f.variables().indexOf('x') == -1) {
feedback( 'You should include an $x$ in your answer.' );
}
if (f.variables().length > 1) {
feedback( 'The only variable you should use is $x$.' );
}
if (abs(f.evaluate( {x:2} ) - 4.0) < 0.0001)
return 1;
feedback( 'Check what happens when you plug in $x=2$.' );
return 0;
}
\end{expression-answer}.
\end{solution}
That is a great example.
\end{exercise}
\begin{exercise}
Here is a multiple choice problem.
\begin{solution}
\begin{multiple-choice}
\choice{Wrong answer A}
\choice{Wrong answer B}
\choice{Wrong answer C}
\choice[correct]{Correct answer D}
\end{multiple-choice}
\end{solution}
Here is some text after the multiple choice.
\end{exercise}
\end{document}
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