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?

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

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