3. DETAILS HARMATHAP12 10.2.001.EP. MY NOTES | ASK YOUR TEACHER Consider the function. f(x)=x33x2+2 Find f'(x). f'(x) = 3x2 6x Find f\"(x). f\"(x) = 6x 6 Find r"(2) and r"(3). r"(2) = N9) = 12 Determine whether the function f(x) is concave up or concave down at the indicated points. (a) x = 2 ' concave up concave down (b) x = 3 concave up ' ' concave down _ Wewing Saved Work Revert to Last Response 7 Submit