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Consider the graph of the fund ion y =p( x) that is provided in Figure 1.12. Ass

ID: 2873323 • Letter: C

Question

Consider the graph of the fund ion y =p( x) that is provided in Figure 1.12. Assume that each portion of the graph of p is a straight line, as pictured At left, the piecewise linear function y = p(.x). At right, axes for plotting y - p'(x). State all values of a for which limxrightarrowa p(x) does not exist. State all values of a for which p is not continuous at a. State ail values of a for which p is not differentiable at x = a. On the axes provided in Figure 1.42, sketch an accurate graph of y = p'(x).

Explanation / Answer

From the provided figure:

        is not existed and

Thus, means is not exists.

Similarly, is not defined at . Then is also not exists.

Thus, is not exists for .

If or is not exists, thus means is not continuous at .

Therefore, the function is not continuous at .

The function where it fails to continuous, then at the same values, the function is not differentiable.

Also, from the graph is not smooth at . At these values also, is not differentiable.

Therefore, is not differentiable at .