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Mathematics 15 Online
OpenStudy (anonymous):

how do you determine the number of turning points?

sam (.sam.):

gradient is 0

sam (.sam.):

number of turning points depends on equation

OpenStudy (anonymous):

y=-5x^3

sam (.sam.):

2

OpenStudy (anonymous):

how do you know?

sam (.sam.):

|dw:1331857745171:dw|

OpenStudy (anonymous):

how can you tell just by looking at the equation?

sam (.sam.):

If x^2|dw:1331857774222:dw| then 1 turning point

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