Question

given f(x)= the square root of 9x and g(x)= 1 over x-1
Answer's given
A. -5
B. 5
C. 1
D. -6

Answer 1

I think I understand how to do it but I'm not to sure

Answer 2

@mathmale

Answer 3

@Jaynator495 @DanJS

Answer 4

@Decarr432: I don't think you've included all of the directions for this problem. Please double check what you've typed in against the original problem statement. Thank you.

Answer 5

Forgot one think lol
Which is the domain of f o g

Answer 6

So find f(x) first correct?

Answer 7

f(x) is already given, so there's nothing to find. I'd prefer you write this function as\[f(x)=\sqrt{9x}\] and g(x) as\[g(x)=\frac{ 1 }{ x-1 }\]

Answer 8

Okay, how do I find domain?

Answer 9

You want f(g(x)) as requested in your question

Answer 10

Can you set that up

Answer 11

You are to answer the question: Which is the domain of f o g?

You should form the actual composition f o g now (although in the future you may be able to do it upon inspection).

Answer 12

f(x) and g(x) are given. Can you now form the composition (f o g)(x)? Follow exactlyl the same pattern you and I used before.

Answer 13

Yes, and okay but how do I set it up with the g(x) being 1/x-1

Answer 14

\[g(x)=\frac{ 1 }{ x-1 }\]

Answer 15

I cant use the same tools as when answering a question I didn't ask buddy

Answer 16

I use Equation Editor for that.

If you don't know how to use Eq. Editor, you could always DRAW your equations and expressions, using the Draw utility (below).