Question: Find the critical points and the intervals on which the function is increasing or decreasing. Use the First Derivative Test to determine whether the critical

Find the critical points and the intervals on which the function is increasing or decreasing. Use the First Derivative Test to determine whether the critical point is a local min or max (or neither).
23. y = −x2 + 7x - 17
25. y = x3 − 12x2

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