Question

How the equation of a tangent line can be determined by making f (x) = 3X ^ 2 - 1 / x, P (1,2)
???
(thank you in advance)

Answer 1

Take the derivative.

Answer 2

Do you know what a derivative is?

Answer 3

aha it gives the slope of the curve but about using it.... yeah ehmm :) So the slope of the tangent is equal to 3*x^(2-1) = 3x?

Answer 4

What's the equation?

Answer 5

Is this it: 3X ^ 2 - 1 / x?

Answer 6

yes it is :))

Answer 7

Then the derivative would be 1/x^2

Answer 8

No tangent line exists at (1,2)