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Graphing Horizontal and Vertical Lines

Graphing Horizontal and Vertical Lines

Author: Craig Nelson
Description:

To explain how to graph horizontal and vertical lines when x or y is set equal to a constant.

A visual explanation of how to graph horizontal and vertical lines.

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Tutorial

Words To Know

• Horizontal Line - A horizontal line is parallel to or on the plane of the horizon.

• Vertical Line - A vertical line is perpendicular to a horizontal line and is upright through the coordinate plane.

• Constant – A constant is a non-varying fixed number.

• Variable – A variable is a value that my vary and is usually represented by a symbol or letter like "x".

• Coordinate Plane - A plane formed by a horizontal and vertical axis.

• Axis - A line through a body or figure.  In this case it refers to the x and y axis.

• Y Axis - The vertical line through the middle of the coordinate plane.

• X Axis - The horizontal line through the middle of the coordinate plane.

• Ordered Pairs - Ordered pairs are coordinates that can be plotted on the coordinate plane and take the form of (x,y).

• Linear equation - An algebraic equation where the terms are either a constant, a single variable, or the product of a constant and a variable.

Graphing Horizontal and Vertical Lines

Example 2

Remember!

REMEMBER:

When a constant is set equal to y, like with y = 2, the line is horizontal.

And when a constant is set equal to x, like with x = 5, the line is vertical.