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Mathematics 15 Online
OpenStudy (anonymous):

Help!

OpenStudy (campbell_st):

well an easy method is to graph the curve... and look where a tangent to the curve would have a negative slope

OpenStudy (campbell_st):

the other is to use calculus to sketch the curve

OpenStudy (ybarrap):

You are looking for where f'(x) < 0 Take the first derivative and see where this occurs

OpenStudy (ybarrap):

Here is f'(x) $$ f'(x)=(x-6) (x-2) $$ When is this negative?

OpenStudy (anonymous):

At 6 and 2?

OpenStudy (ybarrap):

BETWEEN 6 and 2, right? |dw:1436130851705:dw|

OpenStudy (ybarrap):

|dw:1436130906919:dw|

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