7. [-/5 Points] Consider the following function. DETAILS LARCALC11 3.3.023. f(x) = 5x3+ 15x + 8 (a) Find the critical nu

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7 5 Points Consider The Following Function Details Larcalc11 3 3 023 F X 5x3 15x 8 A Find The Critical Nu 1 (39.96 KiB) Viewed 44 times

7. [-/5 Points] Consider the following function. DETAILS LARCALC11 3.3.023. f(x) = 5x3+ 15x + 8 (a) Find the critical numbers of f. (Enter your answers as a comma-separated list.) x = increasing (b) Find the open intervals on which the function is increasing or decreasing. (Enter your answers using interval notation. If an answer does not exist, enter DNE.) decreasing (c) Apply the First Derivative Test to identify the relative extremum. (If an answer does not exist, enter DNE.) relative maximum (x, y) = relative minimum. Need Help? Read It (x, y) = MY NOTES Watch It ASK YOUR TEACHER PRACTICE ANOTHER