Question

Let an ordered pair is represented as $(u,v).$ Choose the correct option regarding its representation on coordinate plane.

• A. $u$ is the $y-$coordinate, and $v$ is the $x-$coordinate.
• B. $u$ is the $x-$coordinate, and $v$ is the $y-$coordinate.
• C. Both the above representations can be used.

Answer 1

The correct option is B $u$ is the $x-$coordinate, and $v$ is the $y-$coordinate.

Ordered pair is a solution of an equation with two variables.

It is represented as $(x-\text{coordinate},y-\text{coordinate}).$

For example, $x=7,y=3$ is a solution of the equation $x+2y=13.$

The ordered pair is $(7,3).$