Question

Given f(x)=x(x-3)+4 what is the derivative of f at a?

Answer 1

`f(x) = {x}^(2) - 3x + 4 \\ (d)/(dx) ( {x}^(2) - 3x + 4) \\ g(x) = 2x - 3`

Let g(x) = f'(x)

Substitute a in x, therefore the answer is.

`g(a) = 2a - 3`

— Note that it'd be better to use f'(a) or y' instead. For this one, I let g(x) equal the derivative of f(x) —