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Mathematics 21 Online
OpenStudy (arianna1453):

Calculus help. will FAN and MEDAL. (:

OpenStudy (arianna1453):

Is this correct?

OpenStudy (welshfella):

first differentiate the function

OpenStudy (arianna1453):

(2,6) only?

OpenStudy (arianna1453):

That is where it is decreasing when graphed. correct?

OpenStudy (arianna1453):

yes no maybe so?

OpenStudy (welshfella):

that is correct there is a maxm at x = 2 and minm at x = 6 in between the function is decreasing

OpenStudy (arianna1453):

Is this correct? @welshfella

OpenStudy (arianna1453):

since the minimum at -4 is -74?

OpenStudy (welshfella):

yes

OpenStudy (arianna1453):

Last one I promise (: This one is confusing me. can you explain

OpenStudy (welshfella):

i looked at second one again re check it

OpenStudy (welshfella):

for third one differentiate the function first then find the turning points

OpenStudy (arianna1453):

x=-3 i got it

OpenStudy (arianna1453):

re check the second problem? why?

OpenStudy (welshfella):

there is no minimum between -4 and 0

OpenStudy (welshfella):

for the 3rd one there is no horizontal point of inflection. I cant recall how to find the other types.

OpenStudy (welshfella):

yea there would be point of inflection about x = -3.

OpenStudy (welshfella):

OH!!! i misread the question Yes NO. 2 is -74

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