anonymous
  • anonymous
**need help**
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
1 Attachment
Haseeb96
  • Haseeb96
where is the question?
anonymous
  • anonymous
that is the question

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anonymous
  • anonymous
i need to give a,b,c,d
Haseeb96
  • Haseeb96
Sorry
anonymous
  • anonymous
like, how do i find f(x+h)
iPwnBunnies
  • iPwnBunnies
Replace 'x' with 'x+h' when asked for f(x+h)
iPwnBunnies
  • iPwnBunnies
This is similar to the definition of a limit, but this isn't calculus it looks like lol.
iPwnBunnies
  • iPwnBunnies
So, f(x+h) = 5/(x+h)
anonymous
  • anonymous
so for part a when it aasks for f(x+h) i just put = 5/(x=h)?
iPwnBunnies
  • iPwnBunnies
Yup
anonymous
  • anonymous
and b its asking for f(x), would it just be 5/x?
iPwnBunnies
  • iPwnBunnies
I guess lol. Idk why they would, but yeah.
anonymous
  • anonymous
lol kinda pointless but okay haha, and what about part c?
iPwnBunnies
  • iPwnBunnies
Replace those into the expression they gave you.
iPwnBunnies
  • iPwnBunnies
And I guess simplify.
iPwnBunnies
  • iPwnBunnies
One thing you can do is find the common denominator for the top part
anonymous
  • anonymous
|dw:1435516818616:dw|
anonymous
  • anonymous
is that how i should set it up?
iPwnBunnies
  • iPwnBunnies
Ye
anonymous
  • anonymous
|dw:1435517005848:dw|
anonymous
  • anonymous
sorry for my horrible drawing haha
iPwnBunnies
  • iPwnBunnies
What did you do there?
anonymous
  • anonymous
i did the equation that i had shown u, i thought u said thas what i was supposed to do ?
anonymous
  • anonymous
can we simplify this any further?
iPwnBunnies
  • iPwnBunnies
Well, Idk how you got to that from when you originially plugged in both functions.
anonymous
  • anonymous
did you get something diff? cuz i just checked on calc and said it was correct but idk could still b wrong
iPwnBunnies
  • iPwnBunnies
|dw:1435517227261:dw|
iPwnBunnies
  • iPwnBunnies
Hmm, I guess if your calculator can simplify it, then that's your answer lol
iPwnBunnies
  • iPwnBunnies
Oh, you are right.
iPwnBunnies
  • iPwnBunnies
When you plug in 0 for h, you get -5/x^2. Which is the derivative of 5/x. So, this problem is inadvertently (sp?) giving you the limit definition of a derivative.
anonymous
  • anonymous
so its right?
iPwnBunnies
  • iPwnBunnies
Yee
anonymous
  • anonymous
okay thanks so much :)

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