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Dependent Variable

Definition Of Dependent Variable

Dependent Variable is a variable whose value depends on the values of one or more independent variables.

Example of Denominator

In p = 4q, p is the dependent variable, because its value depends on the value of q.
In z = 3x2 - 2y3, z is the dependent variable.

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

Solved Example on Dependent Variable

Ques: What is the dependent variable in the function f(x) = 3 - x?


A. no dependent variable
B. 3 
C. f(x)
D. x
Correct Answer: C


Step 1: In the function f(x) = 3 - x, the value of f(x) depends on the value of x. So, f(x) is the dependent variable.