Question

can you explain to me very explicitly how to do this problem and others on how to find the domain of f and g with f(x)=3x^2+2 and g(x)=2x thanks

Answer 1

Do you mean f of g as in f(g(x))?

Answer 2

yea I think

Answer 3

or each function separately?

Answer 4

I'm not sure what you are specifically asking...?

Answer 5

f(g(x))

Answer 6

okay, so do you know what f(g(x)) = ?

Answer 7

No, but similar, think of f(g(x) as: anytime there is an "x" in the function f(x), replace the x with g(x), which is 2x

Answer 8

so its really: f(g(x) = 3(g(x))^2 + 2

Answer 9

ohh ok

Answer 10

which is specifically: f(g(x)) = 3(2x)^2 +2

Answer 11

ok thanks first time using this site

Answer 12

ok, feel free to give me a medal by choosing "best response". :)

Answer 13

awesome, let me know if you need more help.

Answer 14

ok ill post something maybe