Supposef(x)=4

--

3x^3

.

(a) Calculate exactly the value ofywheny=f(2) Simplify your answer as much as possible. Enter a fraction instead of a decimal.

y=

(b Calculate exactly the value ofxwhenf(x)=4 Simplify your answer as much as possible.

x=

2Supposef(x)=2x

1x 2

Findf(4) Simplify your answer as much as possible.

3 Letf(x)=x^2 +7 andh(x)=6x Find a formula for

f(h(x))=

4 Iff(x)=e^3x, g(x)=4x+7 andh(x)=x(square root)

Find a simplified formula for:

f(g(x))h(x)=

5 Iff(x)=3^x andg(x)=10x

x+14

find a simplified formula for: g(f(x))=