Key learning points

1. A line can be drawn using coordinates found following a rule.
2. You can check any point on the line and it will satisfy the rule.
3. Points that are not on the line do not satisfy the rule.
4. Points can be tested to see if they are on the line or not.

Common misconception

Keywords

• Substitution - Substitute means to put in place of another. In Algebra, substitution can be used to replace variables with values.

• Integer - An integer is any positive or negative whole number or zero.