Question

Given the function f(x)=4x+2 evaluate f(-1)

Answer 1

f(- 1) = - 2

Explanation:

to evaluate f(- 1 ), substitute x = - 1 into f(x)

f(x) = 4x + 2 , then

f(- 1) = 4(- 1) + 2 = - 4 + 2 = - 2