Need help with college algebra

[daisia99]

For f(x)=x^2 and g(x)=x^2 +9, find the following composite functions and state the domain of each.
a) f o g (b) g o f (c) f o f (d) g o g

 

[mmm4444bot]

Hi daisia. Where are you stuck?

Please see the forum guidelines; you may start with this summary. Thanks!

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[Dr.Peterson]

If you need a lesson on the subject, this should work:

Composition of Functions

Function Composition is applying one function to the results of another: The result of f() is sent through g().

www.mathsisfun.com

Then give (a) a try, and show us what you get, so we can see where you need help. Just saying you need help doesn't give us enough to work with.