 # Function Tables

A function table is a table of order pairs that follow a rule.

 INPUT x 6 9 12 15 OUTPUT y 4 7  A rule tells how one number is related to another.
Rule: Subtract 2
x-2=y

6-2=4
9-2 =7

So, the next two numbers are 10 and 13. How can you find a rule and complete the table? You can use number patterns to complete a table.

The number pattern is the rule for the table.  You always look for the pattern from the
INPUT to the OUTPUT.  INPUT 6 10 15 18 20 23 OUTPUT 10 14 19   What's the Rule?____________________

What do you have to do to each INPUT number to get the OUTPUT number below it?

 6+4=10   10+4=14   15+4=19
• You add 4 to each INPUT number to get the OUTPUT number.

• The rule for this table is Add 4.

• Use the rule to complete the table. Then write the rule.

 INPUT 6 10 15 18 20 23 OUTPUT 10 14 19 22 24 27 Let's Practice!

http://www.studyzone.org/testprep/math4/d/functiontable4p.cfm

http://www.myteacherpages.com/webpages/TTravis/enrichment.cfm?subpage=1306484

http://teams.lacoe.edu/documentation/classrooms/amy/algebra/3-4/activities/functionmachine/functionmachine3_4.html