Ms. Wilson is walking her dogs, Sonny and Hank. Their walk can be modeled by the graph:
Distance (metres)
55
50
45
40
35
30
25
20
15
10
5
0
0 5 10 15
Distance Time Graph
20
At time 20 seconds, Ms. Wilson is walking
25 30 35
Time (seconds)
At time 10 seconds, Ms. Wilson is standing still ✓
4
40 45 50 55
60