Question

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

Answer 1

x= -5

Explanation:

Replace f(x) with 3, because f(x) is a fancy way of saying y. The equation is 3=-x-2. Add 2 to both sides to isolate the variable. You get 5=-x. Divide -1 from both sides to further isolate the variable. You get -5=x.