CBSE Class 9 Maths Orienting Yourself: The Use of Coordinates (Class 9 NCERT New) Quiz 1

1. What is the primary purpose of a coordinate system?

A To measure distances between objects B To describe exact physical locations of points or objects C To create maps for navigation D To calculate the area of a region

2. What is the name of the system that uses two lines at right angles to mark points in a two-dimensional space?

A Polar Coordinate System B Cartesian Coordinate System C Spherical Coordinate System D Cylindrical Coordinate System

3. Which point lies 4.5 units downward from the origin on the y-axis?

A H = (0, 4) B B = (4.5, 0) C G = (0, -4.5) D E = (-2.9, 0)

4. If x = y, then (x, y) = (y, x).

A True B False

5. If a rectangular table has three of its feet at points (8, 9), (11, 9), and (11, 7), what are the coordinates of the fourth foot of the table?

A (8, 7) B (9, 7) C (10, 7) D (8, 8)

6. The distance covered along the x-axis when moving from A(3,4) to D(7,1) is 4 units.

A True B False

7. What is the distance covered along the y-axis when moving from point A (3, 4) to point D (9, 1)?

A 4 B 2 C 5 D 3

8. Using the Pythagorean theorem, what is the length of side AM in triangle ADM?

A 4√2 or √32 B 6√2 or √72 C 3√2 or √18 D 5√2 or √50

9. What would a system of coordinates be like if we did not have negative numbers? Would this system allow us to locate all the points on a 2-D plane?

A Yes, it would locate all points B No, it would only locate points in Quadrants I and II C No, it would only locate points in Quadrants I and IV D No, it would only locate points in Quadrant I

10. In the coordinates (x,y), the value "y" represents the vertical position of the point.

A True B False