How do you find the tangent line to the curve
F(x)=x^3-25x-1 at x=5 ?

Do you first find the derivative? If so, then what?

Question

How do you find the tangent line to the curve 
F(x)=x^3-25x-1 at x=5 ? 

Do you first find the derivative? If so, then what?

anonymous · Answer

if you're looking for tangent line, then you'll have to take the second derivative. Since the first derivative of that is a curve. Once you get the second derivative, you'll arrive with a linear equation. substitute x = 5 into that equation

wesdg1978 · Answer

The second derivative is 6x. So is just y=30 the answer?

anonymous · Answer

Afraid not, the answers I have are
A. -55
B. 1
C. 13
D. 15

wesdg1978 · Answer

@Athentsu, I'm not sure where that came from.

primeralph · Answer

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