Section 1
The Coordinate Axes
Property
A coordinate grid is formed by two perpendicular number lines called axes. The horizontal axis is called the x-axis, and the vertical axis is called the y-axis. Their point of intersection is called the origin.
In this Grade 5 enVision Mathematics lesson from Chapter 14, students learn how to locate and name points on a coordinate grid using ordered pairs, x-coordinates, and y-coordinates. The lesson introduces key vocabulary including the x-axis, y-axis, and origin, and explains why the order of numbers in an ordered pair matters when identifying a point's location. Students practice both reading ordered pairs from a grid and plotting points given specific coordinates.
Section 1
The Coordinate Axes
A coordinate grid is formed by two perpendicular number lines called axes. The horizontal axis is called the x-axis, and the vertical axis is called the y-axis. Their point of intersection is called the origin.
Section 2
Ordered Pairs
We write the coordinates of point inside parentheses as an ordered pair. The order of the coordinates makes a difference. We always list the horizontal coordinate first, then the vertical coordinate.
An ordered pair is like an address for a point on a graph. The first number tells you how far to move along the horizontal axis, and the second number tells you how far to move up or down the vertical axis.
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Section 1
The Coordinate Axes
A coordinate grid is formed by two perpendicular number lines called axes. The horizontal axis is called the x-axis, and the vertical axis is called the y-axis. Their point of intersection is called the origin.
Section 2
Ordered Pairs
We write the coordinates of point inside parentheses as an ordered pair. The order of the coordinates makes a difference. We always list the horizontal coordinate first, then the vertical coordinate.
An ordered pair is like an address for a point on a graph. The first number tells you how far to move along the horizontal axis, and the second number tells you how far to move up or down the vertical axis.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter