Question

Find the derivative of f(x) = -12x2 + 9x at x = 6.

Answer 1

@mebs

Answer 2

This is too easy for you. Just use the first principle rule. Tell me what you get.\[y = an^{b} , \frac{dy}{dx}= (b) \times (a) n^{b-1}\]

Answer 3

-135

Answer 4

correct

Answer 5

i just did it again and got -108

Answer 6

oh i see what i did wrong, ok cool thanks