if f(x)=2x+3, what is f(-2)

Mathematics · High School · Tue Nov 03 2020

Answered on

Given the function:

f(x) = 2x + 3

What is f(-2)

Solution:

Substitute -2 to the value of x in the given function.

f(-2) = 2(-2) + 3

f(-2) = -4 +3

f(-2) =-1