WeBWorK using host: https://math-webwork3.unl.edu, format: simple seed: 123567890

Use the given graph of the function to answer the following questions. Assume that the graph extends only as far as is shown, that is only on the interval .

1. Find the open interval(s) on which
is concave upward.
Answer (in interval notation):

2. Find the open interval(s) on which is concave downward.
Answer (in interval notation):

3. Find the coordinates of the points of inflection. List your answers as points in the form .
Answer (separate by commas):

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