6. (1 point) List the critical and singular points of the following function in increasing order. Enter N in any blank that you don't need to use. 170>1-'(0)-us8+ (0)80391 = (0)/ 7. (1 point) Find the absolute maximum and minimum values of the fol- lowing function on the given interval. If there are multiple points in a single category list the points in increasing order in x value and enter N in any blank that you don't need to use. f(1) =7tv4 -12, [-1, 2]Absolute maxima x: y: x: y: x: y: Absolute minima x=_y=_ x: y: x: y: 8. (1 point) Find the absolute maximum and minimum values of Jx) = f if any, over the interval ( I, 6]. absolute maximum is and it occurs at x = and it occurs at x = _ absolute minimum is Notes: If there is more than one x value, enter as a comma separated list. Enter "none" in any unused answer box. 9. (1 point) For what values of the numbers a and b does the function x) 2 axebxz have the maximum value f(4) = 6. Answer: a = and b = 10. (1 point) Find the critical point of the function f(x) = sin' 1 x x in the interval 0