| A straight line is plotted on a graph and
two points A and B are chosen anywhere on the line. |
 |
A right-angled triangle can be formed
under this line and the "rise" and "step" can be found.
The gradient,
or slope, of the line can be measured by calculating:
gradient=rise /
step |
|
 |
Use your mouse to move points A and B. The rise
and step of the line passing through A and B is displayed, together with the
gradient of this line. How does the gradient vary as A and B vary? |
