- A(2, 5)
- B(2, 2)
- C(5, 2)
- D(5, 5)
Step-by-Step Solution
The abscissa is written first, and here the abscissa is the column number. Column 5 and row 2 give the ordered pair (5, 2).
Answer: C) (5, 2)
In a seating chart the column number is measured along the -axis and the row number along the -axis. Meera sits in column 5, row 2. Which ordered pair names her seat?
Class 9Coordinate GeometryCoordinate Geometry
Key idea: The Cartesian plane
Two perpendicular axes — horizontal -axis) and vertical -axis) — meet at the **origin** (0, 0). Together they divide the plane into four **quadrants**:
- **I**: > 0 (top right)
- **II**: > 0 (top left)
- **III**: < 0 (bottom left)
- **IV**: < 0 (bottom right)
Points ON the axes don't belong to any quadrant. (a, 0) sits on the -axis; (0, b) sits on the -axis.
- **I**: > 0 (top right)
- **II**: > 0 (top left)
- **III**: < 0 (bottom left)
- **IV**: < 0 (bottom right)
Points ON the axes don't belong to any quadrant. (a, 0) sits on the -axis; (0, b) sits on the -axis.
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More Class 9 Coordinate Geometry practice
Which of these points is farthest from the x-axis?Sameer claims that (−6, 1) is nearer to the y-axis than (−1, 8), because −6 is smaller…A point Q lies on the y-axis, 7 units below the origin. What are its coordinates?How many points in the whole plane have abscissa 0 and ordinate 0 at the same time?How many points in the plane have their ordinate equal to 0?