Question

Assume f(x)= -2x+8 and g(x)=5x. What is the value of (g o f)(3).

Answer 1

a) 3*(x+5)^2 -7

= 3* (x^2 + 25 +10x)

= 3x^2+75+ 30x

Answer 2

g(3)=5(3) because x=3 so g(3)=15