Question

Let f(x) = -4x + 7 and g(x) = 10x - 6, find f(g(x)).

How do I solve that?! Step by step instruction, please; don't just do it for me. I really need to know HOW it's done.

Answer 1

Hint:
(-4x+7(10x-6))

Answer 2

How is that @thetechnomage

Answer 3

My options are:
a. -40x + 70
b. -40x + 64
c. -40x + 24
d. -40x + 31

So ... yeah :/ Still confused.

Answer 4

Sorry my bad, it has to be -40x + 31

Answer 5

I did mistake in last step

Answer 6

Okay! Thanks so much!

Answer 7

put the function g(x) into the function f(x)
which means that you put 10x-6 instead of the x in f(x)

So, to do that:

f(g(x)) = -4 (10x-6) + 7

= -40x +24 +7

= -40x + 31

Answer 8

ur welcome

Answer 9

That makes SO much more sense to me! Thank you so much!

Answer 10

np