Question

What does the following graph tell us about Janet and Sophie's journey?

Answer 1

Please see below.

Explanation:

The graph is given below:

Janet and Sophie started their journey together. Janet walked faster than Sophie from the beginning itself (as shown by steeper slope), but after walking for `1000` hours and `8km.` of journey, decided to take rest.

After `400` hours, when Janet found that Sophie has still not reached and decided to continue journey albeit slowly. At the same time Sophie also observed that Janet was still ahead.

Sophie decided to increase the pace and and was able to catch up with Janet after `1000` hours.