Question

Find the derivative of f(x) = -4x^2 + 11x at x = 10.

Answer 1

@hartnn

Answer 2

@amistre64

Answer 3

\((-4x^2)'=?\)

Answer 4

not sure, i think they want it from limit definition of derivative

Answer 5

@Loser66 -400?

Answer 6

@ganeshie8 I don't know, but to me, I just take derivative term by term , then plug the value of x =10 in, to get the answer
@Sunshine447 \((-4x^2)' = -8x \) when x =10, then it is = -80
do the same with 11x and add them together

Answer 7

so 30