Extending the Number Line
Table of Contents
- Introduction
- Extending the Number Line
- Standards
- Number Lines
- Graphing Rational Numbers on a Horizontal Line
- Absolute Value
- Exploring integers on a vertical number line
- Coordinate Plane
- A 2-Dimensional Number Line
- Plotting Points
- Time and Elevation Number Lines
- Time and Elevation on Coordinate Plane
Extending the Number Line
In class, we've worked with positive rational numbers. We've drawn many number lines and located fractions, decimals, and whole numbers. Now it's time to extend this knowledge to the NEGATIVE side.
Graphing Rational Numbers on a Horizontal Line
Drag each rational number to their correct position on the number line
A 2-Dimensional Number Line
You've now worked with a [color=#0000ff]horizontal number line [/color]and a [color=#ff0000]vertical number line[/color] (the thermometer). When the two number lines come together, they create a [color=#9900ff][size=150]coordinate plane[/size][/color]. [br][br]The horizontal number line has a specific name on a coordinate plane: [color=#0000ff]x-axis[/color][br]The vertical number line has a specific name on a coordinate plane: [color=#ff0000]y-axis [/color][br][br][size=200]([color=#0000ff]x[/color],[color=#ff0000]y[/color])[/size][br]A coordinate pair tells you where to plot a point on a coordinate plane. The first coordinate tells you [justify][color=#0000ff]how far to move on the x-axis[/color] and the second coordinate tells you [color=#ff0000]how far to move on the y-axis[/color]. [/justify]
Your Turn!
For the point (2,3), how far would you go on the x-axis?
For the point (5, -8), how far would you go on the y-axis?