Reading distance-time graphs

This task is about reading information off a distance-time graph.

Question

a)  Tamaiti drove his car for three hours. In the first hour he travelled at 100 km/h,
     and in the second hour he travelled at 25 km/h. In the third hour he travelled at 50 km/h. 
     Which graph best represents his trip?

    • option 1
                  Time

    • option 2
                  Time

    • option 3
                  Time

    • option 4
                  Time

Question

b)  Jill ran a 1500 metre race.
     She started off fast but gradually slowed down until just near the end when she gradually sped up again.
     Which graph best represents her race?

    •             Time

    •             Time

    •             Time

    •             Time

Question

c)  Teuila rode her bike over three stages of a mountain bike course.
     The first stage was uphill, the second stage was downhill and the third stage was along the flat.
     Which graph best represents her ride?

    •                 Time

    •             Time

    •             Time

    •             Time