Question

Calculus,

Do you know how do I solve these kinds of questions?

https://www.dropbox.com/s/8mvx8alj1k2r2yn/Screenshot%202015-12-03%2000.49.08.png?dl=0

Answer 1

spinning circle ... nothing loads

Answer 2

ah there it goes

well a line can be formed from a slope and a point

the slope is just the derivative at x=a and the point is (a,f(a))

y - f(a) = f'(a)(x-a) is our tangent line