The point at which the two coordinate axes meet is called the
a. abscissa
b. ordinate
c. origin
d. quadrant

Solution:

In the Cartesian plane, the horizontal line is called the x-axis and the vertical line is called the y-axis.

The coordinate axes divide the plane into four parts called quadrants

The point of intersection of the axes is called the origin.

Therefore, the point at which the two coordinate axes meet is called the origin.

✦ Try This: Point (7, 0) lies a. on the x-axis, b. in the second quadrant, c. on the y-axis, d. in the fourth quadrant

Abscissa or the x-coordinate of a point is its distance from the y-axis and the ordinate or the y-coordinate is its distance from the x-axis.

(x, y) are called the coordinates of the point whose abscissa is x and the ordinate is y.

Therefore, the point (7, 0) lies on the x-axis.

☛ Also Check: NCERT Solutions for Class 9 Maths Chapter 3

NCERT Exemplar Class 9 Maths Exercise 3.1 Problem 7

The point at which the two coordinate axes meet is called the a. abscissa b. ordinate c. origin d. Quadrant

Summary:

The point of intersection of the axes is called the origin. The point at which the two coordinate axes meet is called the origin

☛ Related Questions:

• A point both of whose coordinates are negative will lie in a. I quadrant b. II quadrant c. III quadr . . . .
• Points (1, – 1), (2, – 2), (4, – 5), (– 3, – 4) (A) lie in II quadrant (B) lie in III quadrant (C) l . . . .
• If y coordinate of a point is zero, then this point always lies a. in I quadrant b. in II quadrant c . . . .