vars clear n'G X + give (-7.-1 72. The graph of g(x) is shown above. The graph consists of three line segments and a semicircle. a) Write a piecewise function for g(x). b) Find all values of x on the interval [0,5] for which g(x) = 1. c) Find the area of the region in quadrant I bounded by the graph of g(x) and the x-axis