Question 1

What is the name of the horizontal line determining the position of a point in a Cartesian plane?

Accepted Answer

The horizontal line in the Cartesian plane is called the x-axis. It is used along with the vertical y-axis to determine the exact position of any point in the coordinate plane.

Question 2

The intersection of the x-axis and y-axis is called:

Accepted Answer

The point of intersection of the x-axis and y-axis is called the origin, and its coordinates are always (0, 0).

Question 3

What is the name of each part of the plane formed by the two axes?

Accepted Answer

Each part of the plane formed by the horizontal x-axis and vertical y-axis is called a quadrant. There are four quadrants in a Cartesian plane.

Question 4

Write the coordinates of the origin.

Accepted Answer

The coordinates of the origin are (0, 0) because both the x-coordinate and y-coordinate are zero at the point of intersection.

Question 5

In which quadrant does the point (-2, 4) lie?

Accepted Answer

For the point (-2, 4), the x-coordinate is negative (-2) and the y-coordinate is positive (4). A point with a negative x-coordinate and positive y-coordinate lies in the second quadrant.

Coordinate Geometry — NCERT Class 9 Mathematics Important Questions & Revision Notes