Find the area of the surface. the part of the surface z = xy that lies within the cylinder x2 + y2 = 81
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The critical points of the function graphed are given as follows:
- x = -1.5: Local maximum.
- x = -1: Local minimum.
The critical points of a function are the values of x for which:
In a graph, they are turning points, and are classified as follows:
- Local maximum, if the functions changes from increasing to decreasing.
- Local minimum, if the functions changes from decreasing to increasing.
Looking at the graph, the turning points are approximately:
- x = -1.5: Local maximum.
- x = -1: Local minimum.
More can be learned about critical points at brainly.com/question/2256078
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