The graph of the function $~g~$ is composed of three segments. The function $~G(x)~$ is defined by the integral expression $\qquad\displaystyle G(x)=\int_{-3}^x g(t)\,dt\,$.  Evaluate the following $~G(3)=~$ [[☃ input-number 1]] $~G(8)=~$ [[☃ input-number 2]]