Question

Suppose f(x) = 4x – 2 and g(x) = -2x + 1. Find the value of f(g(3))

Answer 1

So you would first....find the value for g(3)

meaning everywhere in g(x) you see an 'x'...replace it with a 3

-2(3) + 1
-6 + 1
-5

now you take this value you just found...and place THAT into f(x) everywhere you see an 'x'

4(-5) - 2 = ...?

Answer 2

-37

Answer 3

?

Answer 4

you would do

4 times - 5 which is -20

then subtract 2

-20 - 2 = ...?

Answer 5

-22

Answer 6

That's your answer

Answer 7

thanks

Answer 8

no problem