Question

Thomas is training for a marathon. He runs the first 3 miles of his practice run at a constant speed. Which function could be used to represent the distance Thomas runs, d, in terms of his speed, s?

Answer 1

Because Thomas runs the first 3 miles of his practice at a constant speed, we can use the linear function to represent the distance Thomas runs:

`d=s\cdot t`

Where s is the speed and t the time. The time is the independent variable. So the distance is a function of the time and the constant speed at which Thomas runs.

The blue line represents the distance.