Write down the equation of x-axis.
The x-axis and the y-axis are two lines that create a coordinate plane.
Answer: The equation of x-axis is y = 0.
The horizontal axis in a coordinate plane is represented by the x-axis.
The points on the x-axis are of the form (a, 0), where a is any real number.
So, the y-coordinate of the point of the x-axis is 0.
The x-axis is represented by the equation y = 0