7. [-/4 Points] DETAILS SCALC9 3.3.010. Consider the following. (If an answer does not exist, enter DNE.) f(x) = 2x3 - 3x2 - 12x (a) Find the interval(s) on which f is increasing. (Enter your answer using interval notation.) (b) Find the interval(s) on which fis decreasing. (Enter your answer using interval notation.) (c) Find the local minimum and maximum value of f. local minimum value local maximum value 8. [-/4 Points] DETAILS SCALC9 3.3.011. Consider the following. (If an answer does not exist, enter DNE.) f(x) = 5x4 - 20x3 + 4 (a) Find the interval(s) on which f is increasing. (Enter your answer using interval notation.) (b) Find the interval(s) on which f is decreasing. (Enter your answer using interval notation.) (c) Find the local minimum and maximum value of f. local minimum value local maximum valueConsider the following. (If an answer does not exist, enter DNE.) f( x ) = x2/3 (x - 7) (a) Find the interval(s) on which f is increasing. (Enter your answer using interval notation.) (b) Find the interval(s) on which f is decreasing. (Enter your answer using interval notation.) (c) Find the local minimum and maximum value of f. (Round your answer to two decimal places.) local minimum value local maximum value 10. [-/4 Points] DETAILS SCALC9 3.3.013. Consider the following. (If an answer does not exist, enter DNE.) f( x ) = _ X2 - 35 X - 6 (a) Find the interval(s) on which f is increasing. (Enter your answer using interval notation.) (b) Find the interval(s) on which fis decreasing. (Enter your answer using interval notation.) (c) Find the local minimum and maximum value of f. local minimum value local maximum value11. [-/3 Points] DETAILS SCALC9 3.3.015. Consider the following. (If an answer does not exist, enter DNE.) f(x ) = x5 - 3x2 - 8x + 2 Find the interval(s) on which f is concave up. (Enter your answer using interval notation.) Find the interval(s) on which f is concave down. (Enter your answer using interval notation.) Find the inflection point of f. ( x, V ) = 12. [-/3 Points] DETAILS SCALC9 3.3.016. Consider the following. (If an answer does not exist, enter DNE.) f(x) = 2x5 - 9x2+ 6x- 4 Find the interval(s) on which f is concave up. (Enter your answer using interval notation.) Find the interval(s) on which fis concave down. (Enter your answer using interval notation.) Find the inflection point of f. ( x , V ) =13. [-!8 Points] DETAILS SCALCQ 3.3.019. Consider the equation below. [If an answer does not exist, enter DNE.) x) = x'1 BZXZ + I" (a) Find the interval on which fis increasing. [Enter your answer using interval notation.) : Find the interval on which fis decreasing. [Enter your answer using interval notation.) : (b) Find the local maximum and minimum values of f. local minimum value |:| local maximum value |:| (c) Find the inection points. [Order your answers from smallest to largest x, then from smallest to largest y.) (:i (Z) Find the interval on which fis concave up. {Enter your answer using interval notation.) : Find the interval on which fis concave down.[Enter your answer using interval notation.) : Need Help? _' {Xv x] {Xv x]