Algebra 1 5-2 Guided Practice: Direct Variation

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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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Take Note: What is a direct variation equation?

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Take Note: What is a constant of variation?

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

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Problem 1 Got It?

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Problem 2 Got It?

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

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.

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

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Problem 4 Got It?

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Algebra 1 5-2 Guided Practice: Direct Variation

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?

Take Note: What is a direct variation equation?

Take Note: What is a constant of variation?

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

Problem 1 Got It?

Problem 2 Got It?

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?

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?

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

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

Problem 4 Got It?

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

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?

Take Note: What is a direct variation equation?

Take Note: What is a constant of variation?

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

Problem 1 Got It?

Problem 2 Got It?

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?

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?

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

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

Problem 4 Got It?

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