Question

If f(x) = -3x +4, find f(5).

Answer 1

SOLUTION

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Write the given function

$f(x)=-3x+4$

STEP 2: Find f(5)

This is done by substituting 5 for x in the given function in step 1

$\begin{gathered} f(5)=-3(5)+4 \\ f(5)=-15+4 \\ f(5)=-11 \end{gathered}$

Hence, f(5) = -11