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Independent & Dependent Variables

Site: St. Louis
Course: Michigan Algebra I Sept. 2012
Book: Independent & Dependent Variables
Printed by: Guest user
Date: Saturday, November 23, 2024, 7:14 PM

Description

Table of contents

Dependent Variables

A dependent variable is a variable whose value relies on the values of one or more independent variables.

For example:

1. In p = 4q, p is the dependent variable, because its value depends on the value of q.

2. In z = 3x2 - 2y3, z is the dependent variable.

Example What is the dependent variable in the function y = 3 - x?

The value of y depends on the value of x therefore, y is the dependent variable.


Independent Variables

An independent variable is a variable in an equation, whose values compose the domain. An independent variable may have its value freely chosen regardless of the values of any other variable.

For example: In the equation indep_var_1 , the independent variable is x . The variable y is not independent, because it depends on the value chosen for x .
Example What is the independent variable in the function indp var 2 ?

The independent variable in the given equation is x.


Video Lesson

To learn more about dependent and independent variables, select the following link:

Identifying Independent and Dependent Variables

Guided Practice

To solidify your understanding of dependent and independent variables, visit the following link to Holt, Rinehart and Winston Homework Help Online. It provides examples, video tutorials and interactive practice with answers available. The Practice and Problem Solving section has two parts. The first part offers practice with a complete video explanation for the type of problem with just a click of the video icon. The second part offers practice with the solution for each problem only a click of the light bulb away.

Guided Practice

Practice

Dependent and Independent Variables Worksheet

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Answers

Dependent and Independent Variables Answer Key

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Sources

Embracing Mathematics, Assessment & Technology in High Schools; A Michigan Mathematics & Science Partnership Grant Project

HighPoints Learning Inc, "Math Dictionary." http://www.icoachmath.com/SiteMap/Independent_variable.html (accessed July 29, 2010).

Holt, Rinehart & Winton, "Functions." http://my.hrw.com/math06_07/nsmedia/homework_help/alg1/alg1_ch04_03_homeworkhelp.html (accessed July 29, 2010)