**need help**

- anonymous

**need help**

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- katieb

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- anonymous

##### 1 Attachment

- Haseeb96

where is the question?

- anonymous

that is the question

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## More answers

- anonymous

i need to give a,b,c,d

- Haseeb96

Sorry

- anonymous

like, how do i find f(x+h)

- iPwnBunnies

Replace 'x' with 'x+h' when asked for f(x+h)

- iPwnBunnies

This is similar to the definition of a limit, but this isn't calculus it looks like lol.

- iPwnBunnies

So, f(x+h) = 5/(x+h)

- anonymous

so for part a when it aasks for f(x+h) i just put = 5/(x=h)?

- iPwnBunnies

Yup

- anonymous

and b its asking for f(x), would it just be 5/x?

- iPwnBunnies

I guess lol. Idk why they would, but yeah.

- anonymous

lol kinda pointless but okay haha, and what about part c?

- iPwnBunnies

Replace those into the expression they gave you.

- iPwnBunnies

And I guess simplify.

- iPwnBunnies

One thing you can do is find the common denominator for the top part

- anonymous

|dw:1435516818616:dw|

- anonymous

is that how i should set it up?

- iPwnBunnies

Ye

- anonymous

|dw:1435517005848:dw|

- anonymous

sorry for my horrible drawing haha

- iPwnBunnies

What did you do there?

- anonymous

i did the equation that i had shown u, i thought u said thas what i was supposed to do ?

- anonymous

can we simplify this any further?

- iPwnBunnies

Well, Idk how you got to that from when you originially plugged in both functions.

- anonymous

did you get something diff? cuz i just checked on calc and said it was correct but idk could still b wrong

- iPwnBunnies

|dw:1435517227261:dw|

- iPwnBunnies

Hmm, I guess if your calculator can simplify it, then that's your answer lol

- iPwnBunnies

Oh, you are right.

- 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

so its right?

- iPwnBunnies

Yee

- anonymous

okay thanks so much :)

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