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 wowitch420
whippits n ribs
Registered: 04/22/08
Posts: 5,982
Loc: 512 TX
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 Re: which would do you prefer?  [Re: Picklez]
#157242 - 12/07/08 05:45 PM (15 years, 11 months ago) |
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god i hate math more than meth
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heady nugz
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 Coaster
I'm Back Baby
Registered: 04/23/08
Posts: 25,306
Loc: Sativa Central 
Last seen: 13 years, 6 months
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Re: which would do you prefer? [Re: wowitch420]
#157244 - 12/07/08 05:46 PM (15 years, 11 months ago) |
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math is key to having a good head on ur shoulders
if u can master math then u can master anything
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mhbound
Ballin out at all cost
Registered: 09/22/08
Posts: 8,144
Loc: High
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Re: which would do you prefer? [Re: Picklez]
#157245 - 12/07/08 05:47 PM (15 years, 11 months ago) |
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Coaster send me some cid, and would like a few bags of heroin also. I heard you got someone some the other day.
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Suck my balls America
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wowitch420
whippits n ribs
Registered: 04/22/08
Posts: 5,982
Loc: 512 TX
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Re: which would do you prefer? [Re: Coaster]
#157246 - 12/07/08 05:48 PM (15 years, 11 months ago) |
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math sucks and you know it.
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heady nugz
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Picklez
Registered: 04/20/08
Posts: 17,919
Last seen: 10 years, 5 months
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Re: which would do you prefer? [Re: Coaster]
#157247 - 12/07/08 05:50 PM (15 years, 11 months ago) |
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Quote:
Coaster said:
math is key to having a good head on ur shoulders
if u can master math then u can master anything
average rate of change for 3-x^2 from x=-1 to x=3
I tried just evaluating them both at x=-1 and x=3 I dont think that is right
when x=-1 the resulting answer is 2
when x=3 the answer is -6
The answer on the answer key is rate of change of -2
Thanks again, I will try to figure out the rest on my own or save them until another day 
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Stoneth
D.I.L.L.I.G.A.F.
Registered: 10/06/08
Posts: 25,048
Loc: No where ville, USA
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Re: which would do you prefer? [Re: Coaster]
#157248 - 12/07/08 05:50 PM (15 years, 11 months ago) |
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Thats right. Math the perfect subject.
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Coaster
I'm Back Baby
Registered: 04/23/08
Posts: 25,306
Loc: Sativa Central
Last seen: 13 years, 6 months
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Re: which would do you prefer? [Re: Stoneth]
#157249 - 12/07/08 05:57 PM (15 years, 11 months ago) |
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f(x)=-x^2+3
f'(x)=-2x
f'(-1)=2
f'(3)=-6
(f'(-1)+f'(3))/2=-4/2=-2
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Stoneth
D.I.L.L.I.G.A.F.
Registered: 10/06/08
Posts: 25,048
Loc: No where ville, USA
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Re: which would do you prefer? [Re: Coaster]
#157254 - 12/07/08 06:03 PM (15 years, 11 months ago) |
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If u say so I work with the easy numbers.
Too many yrs away from school.
All I need is squared feet and cubic feet there right.
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Picklez
Registered: 04/20/08
Posts: 17,919
Last seen: 10 years, 5 months
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Re: which would do you prefer? [Re: Coaster]
#157256 - 12/07/08 06:06 PM (15 years, 11 months ago) |
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Quote:
Coaster said:
f(x)=-x^2+3
f'(x)=-2x
f'(-1)=2
f'(3)=-6
(f'(-1)+f'(3))/2=-4/2=-2
how did you get:
f'(x)=-2x
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Coaster
I'm Back Baby
Registered: 04/23/08
Posts: 25,306
Loc: Sativa Central
Last seen: 13 years, 6 months
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Re: which would do you prefer? [Re: Picklez]
#157263 - 12/07/08 06:15 PM (15 years, 11 months ago) |
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take the derivative
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Picklez
Registered: 04/20/08
Posts: 17,919
Last seen: 10 years, 5 months
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Re: which would do you prefer? [Re: Coaster]
#157275 - 12/07/08 06:22 PM (15 years, 11 months ago) |
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Quote:
Coaster said:
take the derivative
uhh the what? 
im going to have to study my ass off to get the B I want 
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Coaster
I'm Back Baby
Registered: 04/23/08
Posts: 25,306
Loc: Sativa Central
Last seen: 13 years, 6 months
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Re: which would do you prefer? [Re: Picklez]
#157280 - 12/07/08 06:26 PM (15 years, 11 months ago) |
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all u gotta do is find f(x+h)-f(x)/h at each of the endpoints as h goes to zero
then average the 2 #s
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Hefe
Registered: 04/21/08
Posts: 1,623
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Re: which would do you prefer? [Re: Coaster]
#157381 - 12/07/08 08:09 PM (15 years, 11 months ago) |
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2+(-6)=(-4)/2=2?
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Picklez
Registered: 04/20/08
Posts: 17,919
Last seen: 10 years, 5 months
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Re: which would do you prefer? [Re: Hefe]
#157539 - 12/07/08 09:20 PM (15 years, 11 months ago) |
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Quote:
Hefe said:
2+(-6)=(-4)/2=2?
He put -2, I understand it now. Just plug in both the answers and average them. Seems simple enough
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