Question

If f(x)=-2x+7 and g(x)=x^2-2, what is [f o g](3)?

-7
-1
1
7

Answer 1

Hello from MrBillDoesMath!

Answer: 21

Discussion:

g(3) = 3^2 -2 = 9 -2 = 7 =>

f(g(3)) = f ( 7) = 2(7) + 7 = 14 + 7 = 21

Thank you,

MrB