A car travels $50$ miles per hour for $2$ hours and $40$ miles per hour for $1$ hour.

1. Sketch a graph of velocity vs. time. Label the axes with units.

   Hint (a):

   Plot time on the $x$-axis and velocity on the $y$-axis.

   More Help (a):

   Notice that velocity is constant for the first two hours, and then has a different constant value for the remaining hour. What do constants look like on a graph?

   Answer (a):

   

2. Fill out the table below for the distance vs. time.

   Time	$0.5$	$1$	$1.5$	$2$	$2.5$	$3$
   Distance

   Hint (b):

   Consider the Freeway Fatalities problem 1-1... Recall that distance information can be found by calculating the area under a velocity graph.

   Answer (b):

   Time	$0.5$	$1$	$1.5$	$2$	$2.5$	$3$
   Distance	$\boldsymbol{25}$	$\boldsymbol{50}$				$\boldsymbol{140}$

3. Graph the function of distance vs. time. Label the axes with units.

   Hint (c):

   Graph the data in the table and connect.
   Note that distance is measured in miles and time is measured in hours.