1- Find the critical point and determine if the function is increasing or decreasing on the given intervals. y=−x2+6x+2 2- Find the critical points and determine if the function is increasing or decreasing on the given intervals. y=6x4+4x3
3- The function f(x)=−2x3+39x2−180x+5 has one relative minimum and one relative maximum.
This function has a relative minimum at x equals with value
and a relative maximum at x equals with value