Answer
See the graph.
Work Step by Step
The function sketched should be decreasing on $(−∞, 2)$ and increasing on $(2,∞)$. It should be concave down on $(−∞,−1)$ and on $(8, 10)$. It should be concave up on $(−1, 8)$ and on $(10,∞)$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.