Question

Marilyn and Tiara went for jogging every day. They increased the number of minutes of jogging every week as described below:

Answer 1

Answer: Tiara's method is linear because the number of minutes increased by an equal number every week.

In this example, Tiara's method is linear, because the minutes she increases are always an equal number: 10. By running 10 more minutes each time, she is using a linear method. On the other hand, Marilyn's method is exponential. This means that the number of minutes are constantly increased by an equal factor (a factor of 2: 10x2=20, 20x2=40, etc.)