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Question

Use the graph to

determine

a. open intervals on which the function is​ increasing, if any.

b. open intervals on which the function is​ decreasing, if any.

c. open intervals on which the function is​ constant, if any.



-5

-4

-3

-2

-1

1

2

3

4

5

-5

-4

-3

-2

-1

1

2

3

4

5

x

y










A coordinate system has a horizontal x-axis labeled from negative 5 to 5 in increments of 1 and a vertical y-axis labeled from negative 5 to 5 in increments 1. A parabola that opens downward has vertex (0, 1) and passes through the approximate points (negative 1, 0.8) and (1, 0.8).

a. Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.

A.

The function is increasing on the​ interval(s)

nothing


.

​(Type your answer in interval notation. Use a comma to separate answers as​ needed.)

B.

There is no interval on which the function is increasing.

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