Find the absolute maximum and absolute minimum values of the function, if they exist, over the indicated interval, and indicate the x-values at which they occur.
f(x) =

; [-3, 1]

◦ Absolute maximum = 0.5 at x = -3; absolute minimum = 0 at x = 0
◦ Absolute maximum = 0.9 at x = 2; absolute minimum = -3 at x = 0
◦ Absolute maximum = 1 at x = -3; absolute minimum = -3 at x = 2
◦ Absolute maximum = 0.9 at x = -3; absolute minimum = 0 at x = 0