Chapter 1: Orienting Yourself: The Use of Coordinates — Online MCQ Test
MATHS · Grade 9 · CBSE(NCERT)
Practice Chapter 1: Orienting Yourself: The Use of Coordinates with a free chapter-wise online MCQ test.
This chapter covers: Cartesian Plane Coordinate Geometry Ordered Pair X Axis Y Axis Origin Quadrants Distance Formula Midpoint Coordinates Graph Plotting Points Aryabhata Sindhu Sarasvati Civilisation....
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Chapter 1: Orienting Yourself: The Use of Coordinates — Important Questions & Answers
What is the point called where the X-axis and Y-axis intersect in the Cartesian plane?
- A. Quadrant
- B. Origin
- C. Axis
- D. Coordinate
Answer: B. Origin
The point of intersection of the X-axis and Y-axis is called the origin. Its coordinates are (0, 0).
The point of intersection of the X-axis and Y-axis is called the origin. Its coordinates are (0, 0).
What are the coordinates of a point on the Y-axis?
- A. (0, y)
- B. (x, 0)
- C. (x, y)
- D. (0, 0)
Answer: A. (0, y)
Any point on the Y-axis has x-coordinate 0, so its coordinates are of the form (0, y).
Any point on the Y-axis has x-coordinate 0, so its coordinates are of the form (0, y).
In the ordered pair (x, y), which coordinate is written first?
- A. y-coordinate
- B. x-coordinate
- C. Origin
- D. Quadrant
Answer: B. x-coordinate
In an ordered pair, the x-coordinate is always written first, followed by the y-coordinate.
In an ordered pair, the x-coordinate is always written first, followed by the y-coordinate.
A point lies in the fourth quadrant. Which of the following must be true?
- A. x > 0 and y > 0
- B. x < 0 and y > 0
- C. x < 0 and y < 0
- D. x > 0 and y < 0
Answer: D. x > 0 and y < 0
In the fourth quadrant, the x-coordinate is positive and the y-coordinate is negative.
In the fourth quadrant, the x-coordinate is positive and the y-coordinate is negative.
Which statement best connects coordinate geometry with ancient Indian mathematics mentioned in the chapter?
- A. Indian mathematicians never used numerical methods
- B. Aryabhata contributed to mathematical ideas that helped in understanding position and calculation
- C. Coordinates were invented only in modern Europe
- D. The Sindhu-Sarasvati civilisation used only decimals and no geometry
Answer: B. Aryabhata contributed to mathematical ideas that helped in understanding position and calculation
The chapter highlights historical mathematical developments in India, including Aryabhata's contributions to mathematics and astronomy.
The chapter highlights historical mathematical developments in India, including Aryabhata's contributions to mathematics and astronomy.