Question

Find the derivative of f(x) = 7/x at x = 1.

Answer 1

recall:

Answer 2

I got -1, is that right do you think?

Answer 3

\[7\frac{ d }{ dx }x ^{-1} = \frac{ -7 }{ x^2 }\]

Answer 4

wait, so -7?

Answer 5

@DanJS

Answer 6

yea

Answer 7

thank you!!!

Answer 8

how did you get the -1?

Answer 9

I really don't know, I used my possible answers and worked backwards and I thought it made sense

Answer 10

lol, it's easier to just take the derivative