Unit 5 Test: Use Functions to Model Relationships

Graph the table (8.F.A.1b).

Tags

CCSS.8.EE.B.5

Does the relation below represent a function? Explain why or why not. (8.F.A.1b)

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8.F.A.1b

Jane and Marcus are running in a marathon. Jane runs at an average speed of 6 miles per hour. The graph shows the average speed Marcus runs. Compare the functions' rates of change. (8.F.A.2)

What is Jane's rate of change (slope)? Explain.

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8.F.A.2

Jane and Marcus are running in a marathon. Jane runs at an average speed of 6 miles per hour. The graph shows the average speed Marcus runs. Compare the functions' rates of change. (8.F.A.2)

What is Marcus's rate of change (slope)? Explain

Tags

8.F.A.2

Jane and Marcus are running in a marathon. Jane runs at an average speed of 6 miles per hour. The graph shows the average speed Marcus runs. Compare the functions' rates of change. (8.F.A.2)

Who runs faster?

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Jane and Marcus are running in a marathon. Jane runs at an average speed of 6 miles per hour. The graph shows the average speed Marcus runs. Compare the functions' rates of change. (8.F.A.2)

• Jane and Marcus have the same average speed.

• Jane’s average speed is double Marcus’s average speed.

• Marcus’s average speed is 2 miles per hour greater than Jane’s average speed.

• Marcus’s average speed is 2 miles per hour less than Jane’s average speed.

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8.F.A.2

Does this relation represent a function? (8.F.A.1b)

 (1, 3), (2, 5), (2, 7), (4, 9)

• Yes

• No

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8.F.A.1b

Does this relation represent a function? (8.F.A.1b)

  (1, 3), (2, 5), (3, 7), (4, 9)

• Yes

• No

Tags

8.F.A.1b

Does this relation represent a function? (8.F.A.1b)

   (1, 3), (1, 5), (1, 7), (1, 9)

• Yes

• No

Tags

8.F.A.1b

Does this relation represent a function? (8.F.A.1b)

   (1, 3), (2, 3), (3, 3), (4, 3)

• Yes

• No

Tags

8.F.A.1b