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