Independent Variable

Definition of Independent Variable

  • Independent variable is a variable in an equation, whose values make up the domain.
  • In other words, an independent variable in an equation may have its value freely chosen regardless the values of any other variable.

Video Examples: The Kid-Friendly Definition of Dependent Variables : Algebra


Example of Independent Variable

    In the equation y = 7x + 5, the independent variable is x. The variable y is not independent, because it depends on the value chosen for x

Solved Example on Independent Variable

Ques: What is the independent variable in the function?

     example of   Independent Variable
    Choices:
    A. f(x)
    B. 3/2
    C. x
    D. no independent variable
    Correct Answer: C

Solution:

    Step 1: Independent variable is a variable in an equation, whose values make up the domain.
    Step 2: So, the independent variable in the given equation is x.

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