Question

1. $f(x) = 2x + 4$; find $f(-5)$

Explanation:

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

We have the function \( f(x) = 2x + 4 \). To find \( f(-5) \), we replace \( x \) with \( -5 \) in the function. So we get \( f(-5) = 2(-5) + 4 \).

Step2: Simplify the expression

First, calculate \( 2(-5) \), which is \( -10 \). Then add 4 to it: \( -10 + 4 = -6 \).

Answer:

\( -6 \)