Mathematics Dictionary : Letter X

Math: the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically.
Also, mathematical procedures, operations, or properties.

Dictionary : Letter X

The letter “x” is often used in algebra to mean a value that is not yet known.
It is called a “variable” or sometimes an “unknown”.

X Axis
The line on a graph that runs horizontally (left-right) through zero.
It is used as a reference line so you can measure from it.

X Coordinate
The horizontal value in a pair of coordinates: how far along the point is.

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