Question

I need help with this question to understand the other ones question A

Answer 1

Given:

A function:

$f(x)=5x-2$

To find:

f(3) and f(-2).

Solution:

The given equation is f(x) = 5x - 2.

Replace x by 3 in the given equation:

$\begin{gathered} f(3)=5(3)-2 \\ =15-2 \\ =13 \end{gathered}$

Replace x by -2 in the given equation:

$\begin{gathered} f(-2)=5(-2)-2 \\ =-10-2 \\ =-12 \end{gathered}$

Thus, f(3) = 13, f(-2) = -12.