Maths with Lemon

Linear Modelling

What you have to know:

You must be able to solve linear equations.
(If not, check this lesson)
You must be able to rearrange formulae.
(If not, check this lesson)

Key Points

1. Watch the video:

2. Read this presentation .
3. Watch this video about lines and the slope–intercept form.
4. Watch this video about perpendicular lines.

Angle of a Line

What you have to know:

The gradient of a line is also the tangent of the angle that the line makes with the x-axis.

Key Points

1. Watch the video:

IB Past Paper Problems

Select a topic and unit, then click the button below to get a new problem.

Choose a Topic: Choose a Unit:

Press the button to start!