Use the partial graph of $f(t)$ shown at right to complete the following questions. .

1. If $f(t)$ is an odd function and $g ( x ) = \int _ { 0 } ^ { x } f ( t ) d t$, evaluate:

   1. $g(-3)$

   2. $2 · g(-7)$

   3. $g(9) + g(-9)$

      Hint (a):

      Sketch the graph of the even function, $f(t)$.

2. If $f(t)$ is an even function and $g ( x ) = \int _ { 0 } ^ { x } f ( t ) d t$ , evaluate:

   1. $g(-3)$

   2. $2 · g(-7)$

   3. $g(9) + g(-9)$

      Hint (b):

      Sketch the graph of the odd function, $f(t)$.