1. 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: f: y= (x+) (x + 1)(x - 1)(2x) g: y= (2x +2)(2x - 2)(x) (-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. (b) If dark black paint costs P10 per sq. unit, how much would it cost to finish the artwork?

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