Thursday
July 2, 2015

Homework Help: Math

Posted by Jamie on Monday, November 8, 2010 at 12:55pm.

f(x)= 4-x^2 and g(x)= sqrt (x)

find the implied domain of fg(x)
fg(x)= f(sqrt(x))
fg(x)= 4-(sqrt(x))^2
fg(x)=4-(sqrt x)(sqrt x)
fg(x)=4-x
domain= (x:x=all real numbers)
Am I correct?

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