Question

If f(x) = 2x and g(x) = x-4, what is the value of f[g(3)]?

-6
-2
0
6
2

Answer 1

i think your suppose to solve for g(x) first by plugging in the 3 to get -1. then you would plug the -1 into f(x)2(-1) to get -2
so your answer would be -2

Answer 2

candygirl7655 i dont get ur question :(

Answer 3

find g(3) so if g(x) = x - 4 then g(3) = 3 -4 g(3) = -1

the find f(-1)

Answer 4

lol me either its okay :)

Answer 5

its just a case of substitution... if g(x) replace x with 3 and solve...


then using that answer... in f(x) replace x with -1 and solve

Answer 6

hey campbell can u help me with mine

Answer 7

what's your question

Answer 8

i have it posted

Answer 9

http://openstudy.com/study#/updates/4ff8b28fe4b058f8b7632ef4