Texas Instruments TI-73VSC Guidebook - Page 171
Example of Function Graphing
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Chapter 9: Function Graphing 165 Example of Function Graphing ³ For every cookie Tham eats, Antonio eats two. How many cookies does Antonio eat if Tham eats 1 cookie, 2 cookies, 3 cookies, and 4 cookies? Find the equation that represents the relationship between how many cookies Tham eats and how many Antonio eats, and represent your answers in the form of a function graph. Y=2X X=number of cookies Tham eats Y=number of cookies Antonio eats These steps explain what the calculator does internally when you define a function graph. The next page shows how to use the TIN73 to find the answers to this example. 1. This example uses these 2. The TIN73 solves for Y X values: using specific X values. Y = 2¦X X=1 Y = 2¦1 = 2 X=2 Y = 2¦2 = 4 X=3 Y = 2¦3 = 6 X=4 Y = 2¦4 = 8 3. It generates a table of (X, Y) coordinate pairs for you to look at. X Y 1 2 2 4 3 6 4 8 4. It graphs the (X,Y) pairs. 8 6 4 2 0 1 234 5 6