Question

Let f(x) = 3x + 5 and g(x) = -4x + 7. Find(gof)(-4)

Answer 1

35

Explanation:

first you need to substitiute the -4 into the f(x) equation which should get you...

3(-4)+5=-7

now sub -7 into g(x)

so, -4(-7)+7=35

so the answer is 35