Given that f(x) = -x + 4 and g(x) = -2x - 3

solve for f(g(x)) when x = 2

Question

Given that f(x) = -x + 4 and g(x) = -2x - 3

solve for f(g(x)) when x = 2

anonymous · Answer

14

anonymous · Answer

do you need work too?

anonymous · Answer

I was wondering how to figure it out, I have multiple choice answers of

a. -14
b. -7
c. 7
d. 11

But I couldn't figure out how to work it out, I start from the inside right? At g(x) and then I start working from f?

anonymous · Answer

yes sorry it is -14

anonymous · Answer

its A

anonymous · Answer

Okay, thank you!
 What did your equation look like? I have a few other questions like this and I don't know how to work them out

anonymous · Answer

f(g(x)
f(-2(x)-3)
f(-2(2)-3)
f(-4-3)
f(-7)
(-x+4) (-7)
(-(2)+4)(-7)
(2)(-7)
-14

anonymous · Answer

if you cant follow it just post the other questions and ill help!

anonymous · Answer

Thank you so much! I was substituting 2 for x at the wrong time. This makes perfect sense. Thanks!

anonymous · Answer

No problem!