f(x)= x^2+3 ; g(x)=3x-1
Check These Please?
1.(fg)(-1)
= 5
2. (f o g)(1)
=10
How would you solve this?
1. (g o f)(x)
(fg)(-1) = f(-1)*g(-1) = 4*(-4) = -16
(fog)(1) = f(g(1)) = f(2) = 7
(gof)(x) = g(f) = 3f-1 = 3(x^2+3)-1 = 3x^2+8
Check These Please?
1.(fg)(-1)
= 5
2. (f o g)(1)
=10
How would you solve this?
1. (g o f)(x)
(fog)(1) = f(g(1)) = f(2) = 7
(gof)(x) = g(f) = 3f-1 = 3(x^2+3)-1 = 3x^2+8