📖Definition
Coordinates are simply a pair of numbers that tell you the position of a point on a grid.
Diagram
Coordinate points are written in brackets with the first number in the bracket being the horizontal position (x coordinate) and the second being the vertical position (y coordinate).
💡Tips/hints
If two points lie on the same horizontal line (in the above example, A and C), then they have the same y coordinate that is, their vertical position is the same.
Similarly, if they lie on the same vertical line, (D and E), their x coordinates are the same.
This is helpful when working out a missing coordinate of the corner of a shape.
Be sure to write the horizontal position as the first number in the brackets and the vertical position as the second.
✏️Example
A kite is drawn in the coordinate grid as shown. What are the coordinates of P?
Diagram
✅Solution
P lies on the same line as (3,5) so its y coordinate (vertical position) is 5.
To find the x coordinate, go down from P to the axis. The number here is 7 - that's the x coordinate.
So, P's coordinates are (7, 5)