Algebra 1 5-2 Guided Practice: Direct Variation

By Matt Richardson
Last updated over 2 years ago
12 Questions
1.

Solve It! The diagram shows how long it takes to hear thunder after you see lightning. What is a general rule, written in sentence form, that you can use to model this situation?

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2.

Take Note: What is a direct variation equation?

3.

Take Note: What is a constant of variation?

4.

Take Note: Provide an example of a simplified direct variation equation. Your equation should include x, y, and a number.

5.

Problem 1 Got It?

6.

Problem 2 Got It?

7.

Problem 3 Got it? Weight on the moon y varies directly with weight on Earth x. A person who weighs 100 lb on Earth weighs 16.6 lb on the moon. What is an equation that relates weight on earth x and weight on the moon y?

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8.

Problem 3 Got it? Weight on the moon y varies directly with weight on Earth x. A person who weighs 100 lb on Earth weighs 16.6 lb on the moon. Consier the equation from the previous item. What is the graph of this equation?

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9.

Take Note: Graph a direct variation equation. Zoom and pan your graph to establish an appropriate viewing window.

10.

Take Note: What point do all graphs of direct variation equations have in common?

11.

Problem 4 Got It?

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12.

Take Note: Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?