Question

If f(x) = x2 + 9x and g(x) = 1/x , find f(g(-1)).
A) -10
B) -8

C)1/9

D) 10

Answer 1

g(x) =?

Answer 2

Fixed it

Answer 3

g(-1)=1/-1 = -1

Answer 4

f(g(-1))=f(-1)=(-1)^2+9*(-1)=?

Answer 5

what??

Answer 6

= 1/9 ?

Answer 7

g(-1) = -1 so, we put that into f(x)

Answer 8

where you see x in f(x), we replace it with -1 and evaluate