Tangent Line

math92

Let $f(x) = \sqrt{x-1}$

a) What is the domain of f?
b) Find f'(x).
c) Is f differentiable at all x in its domain? If not, where and why does it fail to be differentiable?
d) Write the equation of the tangent line at x = 5.
e) Write the equation of the normal line at x = 5.

**Posted:** Thu Oct 23, 2008 3:04 pm

Yongyi781

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**Posted:** Thu Oct 23, 2008 3:16 pm

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