If f(x) = 2x -4 and g(x) = x^2 - 4x, find f(4) and g(-2)

Question

Try to answer, thanks.

Answer 1

Chris D. Is correct! Thumbs up for his answer!

Answer 2

f(4) and g(-2) means substituting those numbers for x into the given functions.

f(x )= 2x-4 so,

f(4) = 2(4)-4 = 8-4 = 4

g(x) = x²-4x so,

g(-2) = (-2)²-4(-2) = 4 + 8 = 12