Definition, Meaning & Synonyms
y-axis
noun
/ˈwaɪ ˌæk.sɪs/

Definition
The vertical line in a Cartesian coordinate system, typically representing the dependent variable.

Examples
- The y-axis in this graph shows the temperature over time.
- To plot a point on the graph, you need to specify both the x and y coordinates.

Meaning
In a mathematical graph, the y-axis is used to measure values that depend on another variable represented on the x-axis.

Synonyms
- vertical axis
- ordinate axis