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?

Choices:

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

Solution:

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.

Related Worksheet

• Identifying-Dependent-and-independent-Variables-for-the-Situations-Gr-6