Question: 1 18 MTH 31 129 decreasing. (4) For the function f(x) = 4r + 3x -68 4 1 find the intervals on which f is

1 18 MTH 31 129 decreasing. (4) For the function f(x) = 4r + 3x -68 4 1 find the intervals on which f is increasing or (5) Complete the following First Derivative Test and draw appropriate illustrations: Suppose that c is a critical number of a continuous function f: . If f' changes from positive to negative at c, then f has at c. . If f' changes from negative to positive at c, then f has at C. . If f' does not change sign at c then, f at c
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