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Sponge: Nancy started a delivery service. She charges $8 per order plus $0.15 per mile to deliver. How much will she charge for delivering 12 miles away? A.$9.80 C. $8.30 B.$9.30 D. $8.15 Thursday, January 22, 2009 Standards: M8A3c. Distinguish between relations that are functions and those that are not functions.

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Function Facts Definition: A relation in which each first value (x) is paired with one and ONLY one second value (y). X value cannot be repeated in a table, mapping, or set of ordered pairs. Must pass the Vertical Line Test when graphed. Crosses at ONLY one Point each time.

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Functions

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mc mc Equation Mapping Table Ordered Pairs

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Functions mc mc Equation Mapping Table Ordered Pairs

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Functions mc mc Equation Mapping Table Ordered Pairs

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Functions mc mc Equation Mapping Table Ordered Pairs

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Is this a function? Question 1: Is the graph shown below that of a function?

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Is this a function? Y = x + 6

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Is this a function? x y

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Is this a function? (0, 3) (1, 8) (4, 8) (6, 3)

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Is this a function? xy

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Work Period Each group has 6 examples.Each group has 6 examples. Make a two column table on your construction paper.Make a two column table on your construction paper. Label the columns as Is a Function and Is Not a FunctionLabel the columns as Is a Function and Is Not a Function. Organize your examples and glue them on the construction paper.Organize your examples and glue them on the construction paper. Using the index cards explain why or why not. Post it on your construction paper.Using the index cards explain why or why not. Post it on your construction paper.

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