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Published byCornelius Wiggins Modified over 9 years ago
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How can you show an infinite number of possible answers? Egg salad: $5 per pound 1 pound for $5 3 pounds for $15 20 pounds for $100
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In this lesson you will learn to display all the possibilities in a proportional relationship by graphing.
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Let’s Review Proportional relationships 30 miles every 2 hours 2 pounds cost $6
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A Common Mistake 11 5 2 12 8 4 Use equal steps for a graph’s scales! (3, 11) (2, 5) (1, 2) 1 2 3
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Let’s Review Core Lesson 2 pounds for $6 Weight (lb.) Cost ($) 2 4 6 6 12 18
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Let’s Review Core Lesson Weight (lb.) Cost ($) 2 4 6 6 12 18 Cost ($) Weight (lb.)
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Let’s Review Core Lesson Distance (mi.) Time (hr.) 30 miles in 2 hours 45 miles in 3 hours
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In this lesson you have learned to display all the possibilities in a proportional relationship by graphing.
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Let’s Review Guided Practice Graph the proportional relationship “3 pounds of egg salad for $2.”
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Let’s Review Guided Practice State in words the proportional relationship shown here. (There are many correct answers!) Distance (ft.) Time (min.)
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Let’s Review Guided Practice Multiple choice: Which graph shows a proportional relationship? A.B.C.D.
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Let’s Review Extension Activities Graph a proportional relationship with negative quantities, like “a loss of 3 dollars per day.” Discuss why the graph is in the fourth quadrant.
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Let’s Review Extension Activities Graph a relationship that is not proportional. Discuss why it is not. Side of a square (in.) Area of the square (in. 2 ) 1 2 3 4
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Let’s Review Quick Quiz Graph the proportional relationship “15 miles in 3 hours.”
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Let’s Review Quick Quiz State in words the proportional relationship shown here. (There are many correct answers!) Cost ($) Weight (ounces)
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