Question

What is the range of the function f(x)=2x-3, when the domain is {-9,-3,1}?

Answer 1

-21, -9, -1 are the answers

Answer 2

Explanation:

f(-9)= 2(-9) - 3 = -18 - 3 = -21

f(-3)= 2(-3) - 3 = -6 - 3 = -9

f(1)= 2(1) - 3 = 2 - 3 = -1