WeBWorK using host: https://webwork-ptx.aimath.org, format: simple seed: 19

Let $f(x) = 9 - x^2$ .

Compute each of the following expressions and interpret each as an average rate of change.
1. $\displaystyle{\frac{f(1) - f(0)}{1 - 0} = {}}$
2. $\displaystyle{\frac{f(3) - f(1)}{3 - 1 } = {}}$
3. $\displaystyle{\frac{f(3) - f(0)}{3 - 0} = {}}$

Based on the graph sketched below, match each of your answers in (i)–(iii) with one of the lines labeled A–F. Type the corresponding letter of the line segment next to the appropriate formula. Clearly not all letters will be used.