Question

Abscissa of a point is positive in

• A. and II quadrants
• B. I and IV quadrants
• C. I quadrant only
• D. II quadrant only

Answer 1

The correct option is B

I and IV quadrants

In the coordinate system, the ordinate is the second component of an ordered pair. For example, if $(x,y)$ is an ordered pair, then y is the ordinate here. An ordered pair is used to denote a point in the Cartesian plane and the first coordinate $\left(x\right)$, in the plane, is called the abscissa.

The distance of a point from $y-axis$ scaled with the $x-axis$ is called abscissa or $X$ coordinate of the point. The distance of a point from $x-axis$ scaled with the $y-axis$ is called ordinate. The abscissa and ordinate all together are called coordinates.

Using the information, we can conclude the following:

The signs of the coordinates in

$Firstquadrant=(+,+)$

$Secondquadrant=(-,+)$

$Thirdquadrant=(-,-)$

$Fourthquadrant=(+,-)$

Hence, the abscissa of the point is positive in the first and fourth quadrant

So, the correct option is (b)