Question

Given f(x)=-x-3, find f(-2)

Answer 1

f(- 2) = - 1

Explanation:

to find f(- 2), substitute x = - 2 into f(x) , that is

f(x) = - x - 3

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