Maths dictionary
What are coordinates?
Coordinates are a pair of numbers (x, y) that give a position on a grid. x says how far across, y says how far up.
Definition
Coordinates are a pair of numbers (x, y) that give a position on a grid. x says how far across, y says how far up.
Example
The point (3, 2) is 3 across and 2 up.
Tip
x comes first: along the corridor, then up the stairs.
Practise it
- Learn it visually: Slope and Straight Lines (interactive lesson)
- Play: Coordinate Battleships
- Online maths practice
Quick check: try these
Work each one out on paper, then tap the question to see the answer.
Find the distance between the points (−1, 1) and (2, 5). (in units)
Answer: 5
Find the distance between the points (3, −3) and (11, 12). (in units)
Answer: 17
Find the distance between the points (6, 6) and (12, −2). (in units)
Answer: 10
Find the midpoint of the line joining (0, 3) and (0, 13).
Answer: (0, 8)
Learn it in depth
Coordinates is part of Coordinate Geometry for Class 9: notes, formulas, solved examples with every step, common mistakes and ten practice questions with answers. Want a teacher to go through it with you? See Class 9 maths tuition.
Related words
FAQ
Coordinates: questions
What are coordinates?
Coordinates are a pair of numbers (x, y) that give a position on a grid. x says how far across, y says how far up. The point (3, 2) is 3 across and 2 up.
What is a common mistake with coordinates?
x comes first: along the corridor, then up the stairs.
Where do students learn coordinates?
Coordinate Geometry is usually taught in Class 9, and the ideas come back in later classes. Chapter names and order differ by board and textbook, so follow your own textbook. We have a full page with notes, solved examples and practice questions.
Play it, don't just read it
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Eight quick questions with instant feedback. Your score is saved on this device and counts in the games and learning paths too.
Profit and loss (Grade 7): Finding profit or loss as a percentage of the cost price, and the selling price after a gain or loss. Open the practice page or print a worksheet.
Or play a game
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