oblems 13-24, use the graph of the function / given. 13. Is f increasing on the interval (-8,-2)? 14. Is f decreasing on the interval (-8,-4)? 15. Is f increasing on the interval (-2,6)7 16. Is f decreasing on the interval (2, 5)7 17. List the interval(s) on which/is increasing. 18. List the interval(s) on which/ is decreasing. 10 2, 10) (-2, 6) (-10,0) (-5,0) (5,0)7.) -10 -5 (0.0) 10 X (-8. -4) 19. Is there a local maximum al 2? II yes, what is it? -6 20. Is there a local maximnum at 5? If yes what is it? 21. List the number(s) at which f has a local maximum. What are the local maximum values? 22. List the number(s) at which / has a loxal minimum, What 21. Fudi

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