- A(0, −7)
- B(−7, 0)
- C(0, 7)
- D(7, 0)
Step-by-Step Solution
Every point on the -axis has abscissa 0. Below the origin the ordinate is negative, so Q is (0, −7).
Answer: A) (0, −7)
A point Q lies on the -axis, 7 units below the origin. What are its coordinates?
Class 9Coordinate GeometryCoordinate Geometry
Key idea: Plotting a point
To plot :
1. Start at the origin.
2. Move units along the -axis (right if positive, left if negative).
3. Move units along the -axis (up if positive, down if negative).
4. Mark the point.
Example: (3, −2). From origin, 3 right, 2 down. Lands in quadrant IV.
**Coordinates are ordered**: (3, 2) and (2, 3) are different points.
1. Start at the origin.
2. Move units along the -axis (right if positive, left if negative).
3. Move units along the -axis (up if positive, down if negative).
4. Mark the point.
Example: (3, −2). From origin, 3 right, 2 down. Lands in quadrant IV.
**Coordinates are ordered**: (3, 2) and (2, 3) are different points.
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Coordinate Geometry practice questions
More Class 9 Coordinate Geometry practice
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?The point (p, q) lies in quadrant III. In which quadrant does the point (q, p) lie?The point (m, n) lies in quadrant II. In which quadrant does the point (m, −n) lie?A rectangle has its sides parallel to the axes, with P(0, 0) and R(6, 4) as opposite…