. 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 + g) {x + 1)(x 1}{2x) g: y = (2x + 2)(2x 2m (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 mu 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 finish the artwork