Key learning points

1. Different speed/time graphs can be interpreted and compared.
2. The area under the graph can also be interpreted in context.
3. Circle theorems can be demonstrated using coordinate geometry.

Keywords

• Gradient - The gradient is a measure of how steep a line is. It is calculated by finding the rate of change in the $$y$$-direction with respect to the positive $$x$$-direction.

• Tangent - A tangent of a circle is a line that intersects the circle exactly once.

Common misconception