# Math Definitions - Letter O

### Chapters

### Ordinate

# Definition of Ordinate

**Ordinate** is another term for \(y\)-coordinate.

Every point in the \(xy\)-plane is represented by an ordered pair, \((x,y)\) that tells us its vertical and horizontal position in the plane.

The **ordinate** gives the **vertical** position of the point in the plane. It tells us how far **up or down** the plane the point lies.

The ordinate always comes **second** in the ordered pair representing the point.

For example, if the ordered pair \((3,2)\) represents the point \(P\) in the \(xy\)-plane, the ordinate of \(P\) is \(2\).

### Description

The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.

### Audience

Year 1 to Year 12 students

### Learning Objectives

Learn common math terms starting with letter O

Author: Subject Coach

Added on: 6th Feb 2018

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