Coordinate Geometry
Class 9–10 Maths: coordinate geometry (distance and midpoint)
Move two points on a grid. Find the distance between them and the midpoint using the formulas.
Words to know
- Coordinates
- A pair (x, y) that gives a point's position.
- Origin
- The point (0, 0).
- Distance formula
- √((x₂ − x₁)² + (y₂ − y₁)²).
- Midpoint
- The point exactly halfway: ((x₁ + x₂)/2, (y₁ + y₂)/2).
Quick check
Answer 3 questions to check what you learned.
Try at home
Draw a grid on your notebook. Mark your house at (0, 0) and your school, a shop and a friend's house with coordinates. Who lives closest?