Question

If f ( x ) = x 2 and g ( x )= 2x - 2,

find f ( g ( 7 ) )

Answer 1

144

Explanation:

First find g(7) --

`g(7)=2(7)-2\\=14-2\\=12`

Then plug 12 into f(x) --

`f(12)=(12)^(2) \\=144`