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# Function rules

## on Aug 02, 2012

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## Function rulesPresentation Transcript

• Function Rules By: Christine Berg Edited By: V T Hamilton
• FunctionThe relationshipbetween the inputand output values
• FunctionEach input value has EXACTLY one output value
• FunctionFunction Notation:f(n) = n + 5Output Input
• FunctionFunction Notation:f(n) = n + 5 Rule for Function
• Function Example:You are driving a car 50 miles per hour (mph)
• Function Example: D=rt d = 50t d=distanceR= rate t=time
• Function Set up a table using the previous function rule: d = 50 t Time 1 2 3 4 5 (Input)Distance(Output)
• FunctionFind the Rule ~ Remember to define the variable. Look at next slide to see if you are correct Hours Worked Salary 1 \$6.50 2 \$13.00 3 \$19.50 4 \$26.00 5 \$32.50
• AnswerDefine the variable s = salary h = hours Function Rule s = 6.50 h
• FunctionFind the Rule ~ then look at next slide to see if you are correct Weeks Plant Height 1 3 2 5 3 7 4 9 5 11
• Answer Define the variable h = heightw = number of weeks Function Rule h=2w+1
• Describe a functionin your own words.