Variable Definition
A letter/symbol representing
an unknown value
Examples of a Variable:
Use letters such as x, y, z for variablesVariable Tips for a known type:
For objets like apples or cars...Always use the first letter of the object
For apples, use the variable a
For cars, use the variable c
When to use arbitrary variables:
Arbitrary variable phrases:a number, an unknown number
then you must pick a variable.
Use x as an arbitrary variable
Variable Examples:
| Example | Variable |
|---|---|
| John's age | a |
| Mary's height | h |
Let statement:
The let statement is a short phraseIt restates what you are solving for.
Let a be John's age
How does the What is a Variable Calculator work?
Free What is a Variable Calculator - This lesson walks you through what a variable is and how to use it.
Also demonstrates the let statement.
What 1 formula is used for the What is a Variable Calculator?
Can use any letter for a variable except e and i since those are designated special numbers in math.
What 2 concepts are covered in the What is a Variable Calculator?
- arbitrary
- A number which could be any number it is defined to be but for which no specific value is chosen.
- variable
- Alphabetic character representing a number
