This activity allows users to attempt to build functions, curves that pass the vertical line test.

How Do I Run This Applet?

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Controls

• Click on roll 5 times to get 5 points on the coordinate system.

• Try to connect the points to make a function. To connect the points, first click on the one that you want to make the starting point. Then, click on the second, third, fourth, and following points in succession so that a function is created. Note: It is not always possible to build a function from the given points.

• Click the No Solution button if you believe that the series of points cannot be connected to form a function.

• The computer will tell you if you build a curve that is not a function -- it will tell you that your graph does not pass the vertical line test.

• Press reset to roll new points.