- A9
- B1
- C8
- D15
Step-by-Step Solution
P and Q have the same ordinate, so PQ is horizontal and its length is the difference of the abscissae: 5 − (−4) = 9 units.
Answer: A) 9
The points P(−4, 3) and Q(5, 3) are joined. How long is the segment PQ, in units?
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
In a seating chart the column number is measured along the x-axis and the row number…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?