(Variables and Patterns) 1.1 Preparing for a bicycle tour

This data WILL vary.
Time (sec): 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120
Jumping Jacks: 0, 14, 29, 41, 54, 66, 78, 89, 101, 115, 129, 141, 153

Follow-up:
1. At times I'd do less jumping jacks than others, but later gain back my energy. The difference between jumping jacks would sometimes vary but mostly i kept a consistent row of jumping jacks in 10-second intervals. The difference would mostly go through 14, 12/11, 14, 12/11.

2. It shows that you'd get fast, then slower, faster, and so on.

Note: I will not post the questions on my posts.