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March 6, 2015

March 6, 2015

Posted by **ladybug** on Thursday, November 8, 2012 at 10:49pm.

f(x)=sqrt x; g(x)=7x-3

A.what is the domain of f*g?

B. What is the domain of f/g?

Please show all work.

- college algebra -
**Steve**, Friday, November 9, 2012 at 2:57amdomain of √x is x>=0

domain of 7x-3 is all reals

f*g = √x (7x-3) domain is now restricted to x>=0

f/g = √x/(7x-3) now the domain excludes values where the denominator is zero.

So, domain is all x>=0 except x = 3/7

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