anonymous
  • anonymous
I have a question on a limit function....
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Let's hear it.
anonymous
  • anonymous
give me one sec. thanks
anonymous
  • anonymous
f(x+(delta)x) - f(x)/(delta)x lim as (delta)x approaches 0..... f(x) = x^2 - 4x

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

amistre64
  • amistre64
-4?
watchmath
  • watchmath
good amistre64 :)
amistre64
  • amistre64
all that verbiage to say; whats f'(0) lol
anonymous
  • anonymous
I'm getting stuck on the algebra...... I have 2x-4 for some reason
amistre64
  • amistre64
and when x = 0 what doe you get?
anonymous
  • anonymous
No, it's (delta)X
amistre64
  • amistre64
deltax = h; just say h
anonymous
  • anonymous
(delta)x goes to 0
anonymous
  • anonymous
ok
amistre64
  • amistre64
or if you wanna get really wild: delta x = partitional section of the distances from x to som interval that goes to zero; but h is simpler eh lol
anonymous
  • anonymous
si
anonymous
  • anonymous
f(x+h) - f(x)/h
amistre64
  • amistre64
(x+h)^2 -4(x+h)-(x^2 -4x) //h x^2 +h^2 +2xh -4x -4h -x^2+4x//h
anonymous
  • anonymous
when the function is f(x) = x^2-4
anonymous
  • anonymous
I'm getting stuck with the 2xh
amistre64
  • amistre64
cancel the terms that cancel and get: h^2 +2xh -4h//h h + 2x -4 when h = 0 is 2x -4
amistre64
  • amistre64
the derivative of x^2-4x IS 2x -4
anonymous
  • anonymous
not taking derivatives yet....
amistre64
  • amistre64
your learning that the longway to get to the derivative just proves the shortcut methods lol
anonymous
  • anonymous
ok so 2x-4 is the limit?
amistre64
  • amistre64
oh yes, you are..
anonymous
  • anonymous
we are trying to find L
amistre64
  • amistre64
and yes, the lim would be 2x-4; since the lim as h->0 of f(x) is the definition of a derivative
anonymous
  • anonymous
OK thank you. I just wanted to make sure.

Looking for something else?

Not the answer you are looking for? Search for more explanations.