Question

Which statement is true? f(x)=2√(x) and g(x)=x^2-1

Answer 1

What do you mean by true?

Answer 2

options are missing...

Answer 3

@Katieann16 Please respond....

Answer 4

A: (fog)(x)=2(x^2-1)
B: (fog)(x)=2x(x^2-1)
C: (gof)(x)=4x^2-1
D: (gof)(x)=4x-1

Answer 5

sorry guys

Answer 6

Thanks for replying.

Answer 7

Do you know how to find (fog)x ?

Answer 8

to find (fog)(x),
you replace every 'x' in f(x) by g(x).

Answer 9

yes

Answer 10

Let me show you an example

f(x)=x^2-1

and

g(x)=x+2

(fog)x=(x+2)^2-1

Answer 11

@Katieann16 Why don't you try solving it ?

Answer 12

@hartnn I am sorry i gotta leave,you can proceed.

Answer 13

@hartnn

Answer 14

to find (fog)(x),
you replace every 'x' in f(x) by g(x).
so, find (fog)(x) and tell me what u get.

Answer 15

so every f(x) is g(x)?

Answer 16

? no....
ok, try finding, (gof) (x)
you have the function g(x), wherever u see 'x' in it replace it by 2√(x)
and tell me what u get for (gof)(x).

Answer 17

im confused .