. Raul has a wall 4 units long and 2 units wide in the Cartesian plane centered on the origin. On this wall, Raul paints two waves to the shape of the following functions: [10] f: y=(x+)(x+1)(xl)(2x) g: y=(2X+2)(2x-2J(XJ(-X %) He plans to paint the region between the two waves a dark black. (a) Graph/draw Raul's artwork. Label the functions and all intersection points. (Note: You may use a graphing software to help you with the graph. but do not just take a screenshot.) (b) If dark black paint costs P10 per sq. unit. how much would it cost to nish the artwork