Rafael is training for a triathlon, which includes swimming, biking, and running. The graph shows the total hours he spent swimming over the first 4 weeks of his training.
• Is the relationship between the time spent
swimming and the number of weeks proportional?
Complete the statements.
Swim Training
30
27
• The points ?
a straight line that
24
?
21
through the origin.
Time (h)
18
15
12
6
0 1 2 3 4 5 6 7 8 9 10
Weeks