Copyright © University of Cambridge. All rights reserved.

## 'Take Your Dog for a Walk' printed from http://nrich.maths.org/

Each day Mr Pearson takes his dog for a walk.

You can see him on the interactivity below.

Full Screen
Version

**If you can see this message Flash may not be working in your browser**
**Please see http://nrich.maths.org/techhelp/#flash to enable it.**
Try moving Mr Pearson and his dog using your computer mouse. The
graph shows how far Mr Pearson is walking from his house after a
certain amount of time.

What happens to the graph once Mr Pearson gets back to his house
after his walk?

Can you make a curved line on the graph?

Describe how Mr Pearson must walk to create this curve.

How must Mr Pearson walk to make the curve steeper?

And can you make the curve shallower? How does Mr Pearson walk
this time?

Some graphs for you to try to reproduce can be found in
the notes .