Question

A (100, -90) should be represented in which quadrant?​

Answer 1

The right-top side region in the two dimensional space is called the first quadrant.

Introduction

first quadrant

Two number lines are bisected perpendicularly at their centre point in two-dimensional Cartesian coordinate system for splitting the coordinate plane into four equal regions.

The right-top side region is called the first quadrant. The region in the angle is the first quadrant and represented by a Roman numeral .

In , the -axis and -axis both represent positive values. Therefore, the signs of abscissa and ordinate of every point in this region must be positive.

If -coordinate and -coordinate of every point are represented by and respectively, then the values of them are written as and mathematically