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A)State an interval in which the  x -coordinate of the maximum turning point on the graph of y=−x(x+2)(x−3)  must lie.

 

B)Use a numerical method to zoom in on this interval and hence estimate the position of the maximum turning point of the graph with the  x -coordinate correct to 1 decimal place.

Guest May 18, 2017
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"A)State an interval in which the  x -coordinate of the maximum turning point on the graph of y=−x(x+2)(x−3)  must lie.

 

B)Use a numerical method to zoom in on this interval and hence estimate the position of the maximum turning point of the graph with the  x -coordinate correct to 1 decimal place."

 

Here's one approach:

 

.

Alan  May 18, 2017

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