Consider the equation below. (If you need to use -infinity or infinity, enter -INFINITY or INFINITY.) f(x) = 2x^3 + 3x^2 - 180x (a) Find the intervals on which f is increasing. (Enter the interval that contains smaller numbers first)Find the interval on which f is decreasing. (b) Find the local minimum and maximum values of 1. (min) (max) (c) Find the inflection point. ) Find the interval on with f is concave up. ) Find the interval on which f is concave down.