Question

f(x)=x^2+1 h(x)=x-2
1. find function of (foh)(x)
2. state the domain using interval notation

Answer 1

(f o h) x can be found by replacing the 'x' in x^2 + 1 by h(x) ( that is x - 2) and simplifying the result

Answer 2

so we have
(x - 2)^2 + 1
simplify

Answer 3

so x^2-4x+5

Answer 4

yep

Answer 5

ok how do I state the domain for that ?

Answer 6

thats also correct. All polynomials have this domain.

Answer 7

thank you....I get confused when the o is between the f and h or sometimes g and h

Answer 8

I have 1 more if you could help me

Answer 9

find the function of (gof)(x) simplify and state the domain for
f(x)= 3/x
g(x) =1/x

Answer 10

I can do it in another question if you would like so I can give another badge

Answer 11

ok

Answer 12

ok I am closing this one and submitting it in a new question.