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Mathematics 18 Online
OpenStudy (anonymous):

Can someone check my answer? Attached below.

OpenStudy (anonymous):

link where

OpenStudy (anonymous):

OpenStudy (anonymous):

I'm stuck between b and c.

OpenStudy (anonymous):

1,1

OpenStudy (anonymous):

Eh I'm not that sure

OpenStudy (anonymous):

I know 1,2, and 0 are mins and maxs, I just can't determine which one would be the minimum.

jimthompson5910 (jim_thompson5910):

hint: use the first derivative test to see how the sign of f ' (x) changes when you pass through each root

OpenStudy (anonymous):

So it's 2 and 0?

jimthompson5910 (jim_thompson5910):

yes because on the left of x = 2, f ' (x) is negative, then it becomes positive when you pass through x = 2 and go to the right of it a bit

jimthompson5910 (jim_thompson5910):

same with x = 0

OpenStudy (anonymous):

Wait 1 because if the derivative is negative then the original is decreasing so the minimum?

jimthompson5910 (jim_thompson5910):

|dw:1455318904101:dw|

jimthompson5910 (jim_thompson5910):

|dw:1455318917876:dw|

jimthompson5910 (jim_thompson5910):

|dw:1455318950865:dw|

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