Question

2.03 evaluating functions hw

1. if \\( f(x) = 2x - 8 \\),

5a find \\( f(5) \\)
\\( f(5) = 2 \\)
5 nailed it!
5b find \\( f(-5) \\)
\\( f(-5) = \\) enter your next step here

Explanation:

Step1: Substitute \( x = -5 \) into \( f(x) \)

We have the function \( f(x) = 2x - 8 \). To find \( f(-5) \), we replace \( x \) with \( -5 \) in the function. So we get \( f(-5)=2\times(-5)-8 \).

Step2: Calculate the expression

First, calculate \( 2\times(-5) \), which is equal to \( -10 \). Then we have \( -10 - 8 \). Subtracting these, we get \( -18 \).

Answer:

\( f(-5)=-18 \)