If f(x)= -x^3+3x^2-6, find the critical values and absolute minimum and maximum for the following: a.) [-1,1]
b.) (-1.1]
c.){-1,1}
d.) (-1,1)
Could really use some help

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.