(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

http://img214.imageshack.us/img214/4673/mathproblemnw5.png [Broken]

2. Relevant equations

lim x->a[tex]\frac{f(a+h)-f(a)}{h}[/tex]

3. The attempt at a solution

Ive tried so many times to figure this out. I first substituted the equation into the formula above and multiplied by the conjugate and ended up removing h from the numerator and denominator leaving a -1/2[tex]\sqrt{a}[/tex]. As you can see I have already lost credit for the problem and cannot redo it, but I still want to know how to do it. Any tips and help is appreciated.

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# Homework Help: Find the slope of the tangent to the curve at the point where x = a

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