Welcome :: Homework Help and Answers :: Mathskey.com

Recent Visits

    
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,435 questions

17,804 answers

1,438 comments

774,906 users

Find G(f(x))

0 votes

if f(x)= √x+4 and g(x)= x^2?

asked Sep 30, 2014 in ALGEBRA 1 by anonymous

1 Answer

0 votes

The functions are f(x) = √(x + 4) and g(x) = x2

g(f(x))

Substitute the expression for functioning f (in this case √(x+4)) for f(x) in the composition.

= g[√(x + 4)]

Now substitute this expression (√(x + 4)) in to function g in place of the x value.

=[√(x + 4)]2

= x + 4

g(f(x)) = x + 4.

answered Sep 30, 2014 by david Expert

Related questions

...