What practical examples are there of uses of the real number line in everyday life?

Question

Nathan Axel · Accepted Answer

The most obvious one we use daily is a thermometer - the temperature can increase from freezing point, but it is possible to have negative temperatures as well.

You can read your altitude on the screen of a GPS unit - it will tell you how high or even how far below sea level you are.

Ethan Adkins · Answer

Mechanical devices for measuring.

Most mechanical devices for measuring contain part of the real number line. Some examples: (Marked) ruler Protractor Kitchen/bathroom scales Micrometer (twice) Pressure gauge Barometer

Nathan Axel · Answer

One you probably already use. The axis of a graph.

Jameson Allen · Answer

undefined Practical examples of the real number line in everyday life include:

1. Temperature scales, such as Celsius and Fahrenheit.
2. Measuring distances, lengths, and heights.
3. Representing time, such as hours, minutes, and seconds.
4. Financial transactions, including money earned, spent, or saved.
5. Measuring weight or mass, like kilograms or pounds.
6. Representing quantities of items, such as the number of items in a package or the amount of ingredients in a recipe.
7. Recording scores in sports or games, where points are counted on a numerical scale.