Question

This is a bit hard and I’ve tried multiple times and still don’t get it and there’s also another one right after which is b. F(0)

Answer 1

Explanation: To eveluate the expression at the given points all we need to do is to substitute the x-value for the value inside the parenthesis.

Step 1: Let's calculate as follows

$\begin{gathered} f(x)=5x-4 \\ \\ \text{if x=4} \\ f(4)=5\cdot4-4=16 \\ \\ \text{if x=0} \\ f(0)=5\cdot0-4=-4 \end{gathered}$

Final answer: So the final answer is

a. f(4) = 16

b. f(0) = -4