Question

if f(x)=x3 and g(x)=x-1 which of the following statements is true
A (g*f)(0) =3
B (f*g)(0)=1
C (f*g)(2)=1
D (g*f)(2)=6

Answer 1

(g*f)(0)=g(f(0))=g(0^3)=g(0)=0-1=-1 \( \ne \) 3
You can do similarly for other cases to get the correct answer.

Answer 2

its x qube i couldnt get it to do that when i put in the question

Answer 3

We usually put x^3 to mean x cubed, and so on, but I understood what it meant. :)

Answer 4

okey thanks