Question

evaluate this limit for the given value of x and function f: f(x)= 1/x and x=-2 in the limit of the form: f(x+h)- f(x)/h lim h-->0

Answer 1

it is just derivative f'(-2) So lim = -(1/(-2)^2)= -1/4

Answer 2

I don't understand:-(

Answer 3

Do you know what is derivative?

Answer 4

Nope. Just started calc; this is first hw question on limits...

Answer 5

Soz)

Answer 6

I appreciate your help!

Answer 7

lim (1/(-2+h) - 1/(-2))/h = lim ( (-2 - (-2 +h) )/(-2+h)*(-2) )/h =
lim (-(h )/(-2+h)*(-2) )/h = lim -1/ (-2+h)*(-2) = -1/4

Answer 8

AH! Thank you!