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What is a Variable?

Definition: Variables

Summary

  1. A variable is just a symbol that usually represents a number
  2. The letter 'a' is an example of a variable
  3. The letter 'x' in the term '2x' is a variable
  4. The number '10' is not a variable, it's just a number!

Notes

    1. A letter is an example of a symbol
    2. A drawn picture of a dog is a symbol
    3. A drawn picture of a sailboat is a symbol
    4. Pictures usually aren't used to be symbols for numbers, instead we just pick letters to be our variables!
    1. The numbers 1, 20, and π can be represented by variables
    1. The letter 'a' is an example of a variable
    2. The letter 'x' is an example of a variable
    3. The letter 't' is an example of a variable
    1. The letter 'a' is an example of a variable
    2. The letter 'x' in the term '2x' is a variable
    3. The number '10' is not a variable, it's just a number!