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Solving Proportions and Graphs PreAlgebra Farris 2015.

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Presentation on theme: "Solving Proportions and Graphs PreAlgebra Farris 2015."— Presentation transcript:

1 Solving Proportions and Graphs PreAlgebra Farris 2015

2  I can solve real life rates and proportions and graph the relationships.

3 Fill in the table to show the cost (in dollars) to create CDs of digital photos at a photo shop. Then list the ordered pair that is created. Numbe r of CDs x Cost in Dollars y Ordere d Pair (x,y) 26 9 4 What is the unit rate for the cost of making digital CDs? How much would it cost to make 10 CDs? 3 (2,6) (3,9) 12(4, 12)

4 Anna earns $4 for each hour she babysits. Fill in the table below to show equal rates for the number of hours she babysits. Graph the ordered pairs. This time you will need to design the coordinate plane. Hours x Dollars Earned y Ordered Pair (x, y) 1 2 3 4 5 4 (1,4) 8(2,8) 12 (3, 12) 16(4, 16) 20 (5, 20)

5 Kaitlyn and Anika are each making a scrapbook. Kaitlyn places 4 photos on each page of her scrapbook. Anika places 3 photos on each page of her scrapbook. Pages x Photos y Ordered Pair (x,y) 14(1,4) 2 3 4 5 6 Pages x Photos y Ordered Pair (x,y) 13(1,3) 2 3 4 5 6 Kaitlyn’s Scrapbook Anika’s Scrapbook

6 How do the ratios of Kaitlyn’s and Anika’s scrapbook compare?

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