Lines, points and gradients. Basically algebra wearing a graph costume.

Quick Summary

Coordinate geometry connects algebra and shape. The big ideas are gradient, midpoint, distance and equation of a line.

• ✅ Must-know skills
• ⚠️ Common mistakes

Formula Zone

• Gradient
• Midpoint

Worked Example Zone

• Example — Find gradient

Exam Practice

• Easy
• Medium
• Hard

Revision Checklist

• [ ] I can calculate gradient.
• [ ] I can find midpoint.
• [ ] I can find line length.
• [ ] I can form the equation of a straight line.