Question

What is f(-4) if f(x)=-2x-8?

Answer 1

Explanation:

First we find the function

g

(

f

(

x

)

)

To do this we substitute the variable

x

in

g

(

x

)

for

f

(

x

)

:

∴

g

(

x

)

=

3

x

−

2

g

(

f

(

x

)

)