The question is "find and simplify the difference quotient."(adsbygoogle = window.adsbygoogle || []).push({});

Given function

f(x)=sq root of x

So what I did is insert (x+h) under the radical & got

sq root of (x+h), then I subtracted the sq root of x (original function)

My answer was sq root [(x+h) - sq root (x)] / h

The answer in the back of the book is 1 / [sq root (x+h) + sq root (x)]

I'm not understanding where I'm going wrong, the other problems didn't give me a problem, just this one.

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# Homework Help: Difference Quotient

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