In this article, you will learn about various math terms that start with the letter X.

**X-**axis: The horizontal axis in a coordinate plane.**X-**coordinate: The value that shows the horizontal position of a point.**X-**intercept: The point where a graph crosses the x-axis.**X-**bar: The mean or average of a set of values.**X-**matrix: A matrix used in calculations or representations in mathematics.**X-**value: The value of a variable on the x-axis.**X-**factor: The variable or element being solved for in algebra.**X-**variable: The variable often represented on the horizontal axis.**X-**function: A function where the value of x is the input.**X-**tile: A term in statistics representing a specific percentile.