Mathematics, 20.08.2019 15:00, kevinsosdik

For the function f(x)=2x^3-3x^2-22.5x+19
a. find the critical points or explain, with a derivative, why there are no critical points.
b. find the x and y coordinates of the absolute maximum and absolute minimum of f(x) in the interval [-4,5]. be sure to show all the necessary supporting calculus
c. find the x and y coordinates of the absolute max and absolute min of f(x) in the interval [0,3]. be sure to show all the necessary supporting calculus.
d. find all intervals where f(x) is increasing and all intervals where f9x0 is decreasing. be sure to show supporting calculus.
e. find all intervals where f(x) is concave up and all intervals where f(x) is concave down. show supporting calculus

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For the function f(x)=2x^3-3x^2-22.5x+19
a. find the critical points or explain, with a deriva...