21.1 Case Study: MCQ

We are going to use R code to generate HTML or LaTeX to produce multiple-choice questions such as

21.1.1 Pop Quiz!

1. What is the derivative of $f(x) = 1 + 2\cos(3\pi x + 4)$?

   1. $f'(x) = 6\pi\sin(3\pi x + 4)$
   2. $f'(x) = -6\pi\sin(3\pi x + 4)$
   3. $f'(x) = 24\pi\sin(3\pi x + 4)$
   4. $f'(x) = -24\pi\sin(3\pi x + 4)$

A whisker plot

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As developers, we may be asking ourselves:

• What are the expressions?
• What are the symbols?
• Will we have to quote inputs from the user (math teacher)?