Graphing Accelerated Motion

The GIF below shows the progress of a car as it approaches a stop sign.  For each of the questions below please provide evidence.

1.    For what time period is the car’s acceleration increasing?

2.    What is the value of the acceleration?

3.    For what time period is the car traveling at constant velocity?

4.    What is this velocity?

5.    For what time period is the car’s acceleration negative?

6.    What is this acceleration?