\text { Let } g(x)=\int_{0}^{x} f(t) d t \text {, where } f \text { is the function whose graph is shown. } \text { (a) Evaluate } g(0), g(2),

g(4), g(6) \text {, and } g(12) \text {. } (b) On what interval is g increasing? (Enter your answer using interval notation.) (c) Where does g have a maximum value? (d) Sketch a rough graph of g.