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1.12: Functions that Describe Situations

Difficulty Level: Basic Created by: CK-12
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Vocabulary

dependent variable

A dependent variable is one whose values depend upon what is substituted for the other variable.

Function

A function is a relation where there is only one output for every input. In other words, for every value of x, there is only one value for y.

independent variable

The independent variable is the variable which is not dependent on another variable. The dependent variable is dependent on the independent variable.

Function Rule

A function rule describes how to convert an input value (x) into an output value (y) for a given function. An example of a function rule is f(x) = x^2 + 3.

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Difficulty Level:
Basic
Grades:
8 , 9
Date Created:
Feb 24, 2012
Last Modified:
May 23, 2016
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MAT.ALG.412.L.1