Practise this skill Topic Test - StandardTopic Test - AdvancedRelated Key Skills
We recommend you are comfortable with the topics below before you start the selected video.
Appreciate that a point on a line must satisfy its equation, and be able to determine x and y intercepts of a line.
Determine the equation of a straight line.
Know the relationship between the gradients of perpendicular lines.
will not interrupt what you are doing.