Question

If f(x) = 3x + 1 and g(x) = 2x − 4, find f[g(2)].

25
4
0
1

Answer 1

@SavannahChey can you find f(g(x))?

Answer 2

2 ?

Answer 3

Work out g(2) and put it for x in f(x)

Answer 4

We have
\[f(x)=3x+1\]
and g(x)=2x-4
so
\[f(g(x))=3g(x)+1\]
plugin g(x)=2x-4 to find f((g(x))

Answer 5

Break it apart: g(3)= 3(3)-4=9-4=5. Thus, f(g(3))=f(5)=2(5)+1=10+1=11

Answer 6

It's g(2) (zero)

Answer 7

oh okay muh bad... ill fix it

Answer 8

@SavannahChey got it?

Answer 9

i think .. ;D
so my answer is 1 , right ?

Answer 10

Yes.

Answer 11

thanks guys : )

Answer 12

sorry for the confusion on my post... i thought it was g(3) not g(2)

Answer 13

its okay .

Answer 14

kk