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Teaches distinguishing between possible and impossible graphs of functions as well as causes of graphical impossibility.
Students investigate linear functions with positive slopes by trying to guess the slope and intercept from inputs and outputs. Positive Linear Function Machine is one of the Interactivate assessment explorers.
This worksheet is for use with the Function Flyer activity (http://www.shodor.org/interactivate/activities/FunctionFlyer/).
This worksheet is for use with the Two Variable Function Pump activity (http://www.shodor.org/interactivate/activities/TwoVariableFunction/).
This worksheet is for use with the Function Machine activity (http://www.shodor.org/interactivate/activities/FunctionMachine/).
Students investigate linear functions by trying to guess the slope and intercept from inputs and outputs. Linear Function Machine is one of the Interactivate assessment explorers.
Vertical Line Test (Activity)
Learn about the vertical line test for functions by trying to connect points in the plane to build a function. When you have connected all of the points, you will be told if your graph is a valid graph of a function. Vertical Line Test is one of the Interactivate assessment explorers.
This worksheet is for use with the Function Flyer activity (http://www.shodor.org/interactivate/activities/FunctionFlyer/).
Linear Functions (Discussion)
Discusses functions of the form y = ___*x + ___.
Give input to the Whole Number Cruncher and try to guess what it did from the output it generates. This activity only generates multiplication and addition functions to avoid outputting any negative numbers. Whole Number Cruncher is one of the Interactivate assessment explorers.

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