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# Patterns and Functions

September 5, 2012
by

## Katie Boyd

on 5 September 2012

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#### Transcript of Patterns and Functions

September 5, 2012 Patterns and Functions 1) 10 more than twice a number

2) a number divided by 4

3) 8 minus six times a number

4) twice a number subtracted from 7 Review: A function is a relationship that assigns exactly one output value for each input value.

A function rule is an equation that describes a functional relationship. Functions 1) 2) Variable: any quantity that can be changed
Independent: Stands alone
Dependent: Something that relies on another thing Relationships in a Function Math-ing it up... Dependent variables rely on the value of the independent variable. 1) 2) Domain: The set of ALL possible values for the independent variable
Domain and Range Range: The set of ALL possible values for the dependent variable 1) The amount Mario earns depends on the number of hours he works in a week. Define the independent and dependent variables. Give a reasonable domain and range for the situation.

2) Charlie downloads songs for \$.75 each. He has between \$3.00 and \$6.00 to spend on songs. Identify the independent and dependent quantities for this situation and find reasonable domain and range values. Examples
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