In a coordinate plane, what is the name of the horizontal axis?

In a coordinate plane, what is the name of the horizontal axis?

• A. X-axis
• B. Y-axis
• C. Origin
• D. Domain

Answer: (A)

The horizontal axis on a coordinate plane is called the x-axis. It runs left to right, and the points along it have a y-coordinate of zero (y = 0). The vertical axis, which runs up and down, is the y-axis. Their intersection is the origin, where both coordinates are zero. The term domain refers to the set of possible input values for a function and is related to x-values, not the axis name itself. So the horizontal axis is the x-axis.

The horizontal axis on a coordinate plane is called the x-axis. It runs left to right, and the points along it have a y-coordinate of zero (y = 0). The vertical axis, which runs up and down, is the y-axis. Their intersection is the origin, where both coordinates are zero. The term domain refers to the set of possible input values for a function and is related to x-values, not the axis name itself. So the horizontal axis is the x-axis.