P.O.D. #12 .

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Presentation transcript:

P.O.D. #12

Outcome I can identify proportional and nonproportional linear relationships by finding a constant rate of change.

Definitions Linear relationship – relationships that have straight-line graphs Constant rate of change – when the rate of change between any two points in a linear relationship is the same or constant

Find the rate of change by: Turn to the next clean page in your booklet and title it: (top half) Finding the Rate of Change in a Table Find the rate of change by: The change in y divided by the change in x The first column of a table is usually the x and the second column is usually y (Sometimes they will mix them up just to trick you)(Ex. Page 172) Almost always, time is x Almost always, money is y

Find the rate of change by: Turn to the next clean page in your booklet and title it: (bottom half) Finding the Rate of Change in a Graph Find the rate of change by: Make a table with the coordinates Then, follow the table rules If the graph’s line is straight and goes through the origin, then it is proportional. It must do both to be proportional.

Turn to Page 172

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With Your 8:00 Appt Complete page 175(1-9)

Homework Complete page 177(14-19) or IXL I.1