Co-ordinate Geometry

Dear 3E1,
Now that you have learnt the basics of Coordinate Geometry -
1. Gradient of line
2. Equation of line
3. Mid point of 2 points
4. Length of 2 points
5. Area of polygon
6. Perpendicular lines
7. Parallel lines
You will need to apply them in a problem sum and not in isolation.
What are the difficulties you face?
Please share freely and suggest how we may help each other?

Linear Law

Dearest 3E1,
What do you think you will be learning under this topic entitled 'Linear Law'?