Question

If f(x) = 2x - 3, find f(-2).

Answer 1

f(x) = -7

Explanation:

f(x) = 2x - 3 turs into

f(x) = 2 x -2 - 3

f(x) = -4 - 3

f(x) = -7

Answer 2

0.5

Explanation:

-2 = 2x - 3

1 = 2x

0.5 = x