Question

Find the derivative of f(x) = 2 divided by x at x = -2.

Answer 1

\[f(x)=\frac{ 2}{ x }=2x^{-1}\]
Do you know the power rule?

Answer 2

wouldn't it be -1?

Answer 3

@peachpi

Answer 4

no, what did you get for f'(x)?

Answer 5

ohhhh 1/2

Answer 6

2/(-2)^2

Answer 7

yes 1/2

Answer 8

What about f(x)= -9/x, x=-8
=9/64
@peachpi

Answer 9

wait actually 64/9 since nine is negative

Answer 10

you were right 9/64