To work out the equation for any line, you need the equation mx+c.

M, is the gradient, this is the difference between each of the points. The point on the x axis divided by the point on the y axis.

C, is the y intercept, this is where the line intercepts the y axis. This can be a positive number or a negative number. Sometimes you may have to extend the line if it does not touch the y axis, for this use the gradient.

**Constructing Triangles**

To construct a triangle without the sizes of the angles you need to:

1) Draw your base line however long it needs to be.

2) Open your compass to the size of the side connected to the left edge of your straight base line.

## Comments

No comments have yet been made