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tmagloire1
 one year ago
AP Calculus AB Help!! Medals
I need help on 2 questions
http://prntscr.com/7w7cjp
http://prntscr.com/7w7cul
tmagloire1
 one year ago
AP Calculus AB Help!! Medals I need help on 2 questions http://prntscr.com/7w7cjp http://prntscr.com/7w7cul

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SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1Ok, lets do the question 1 first.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1inflection point is an xvalue that makes f''(x)=0, so the f'(x) doesn't tell us anything about the inflection points. So you can eliminate C, and it should be a critical point/number. A critical number is when f'(x)=0. When is this the case, when x=1, or x=0?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1yes, correct, so your answer is...

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1yes, the first option.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1now, question #2 ...

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1See where x=2.25 and x=1.75 are on your graph?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1this part of the graph you can take alone (and ignore the rest of the graph) to tell me the approximate slope at x=2.

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.1Don't they land in the middle of a box? How can I find the approx. slope?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1You can just visually tell me, if you refer to your options....

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1you have no function f(x) given in a form of an equation, i know, but you can take that piece from x=1.75 to x=2.25, and tell me what the slope of this whole peace is appaorximately

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1take a narrower space on the function at about x=2, and try to picture what a tangent line would look like

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.1I still can't really see it. I'm just doing rise/run to count the slope on the graph is this wrong. I'm not really understanding it

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1it is correct, but you are taking a too wide interval.... i can't copy your picture..... wanted to show something but my extention for copying it isn't there...

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437686303764:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437686429195:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437686484177:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1We can go ahead and find the function it you want tho'

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.1Is the smaller approx. 1

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.1if you go from 1.75 to 2

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.1Oh okay lol idk why that was so hard for me sorry

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1you can take like 1.9 to 2.1

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.1Thank you for your help though!

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.1Okay but isn't the actual answer closer to +1 not 1

tmagloire1
 one year ago
Best ResponseYou've already chosen the best response.1Ohh okay I thought 3/4 for a was the approximation

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1it is not 1, because the graph is squiized, it is more likely a 4.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1yeah, if you were to stretch the graph so that ever unit of x and unit of y get the same space, then the slope is way greater than 1, so the answer is 4, actually...
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