Open Up - Grade 8 - Mathematics - Unit 5 - Lesson 7

The equation and the tables represent two different functions. Use the equation b=4a-5 and the table to answer the questions. This table represents c as a function of a. When a is -3, is b or c greater?

• b.
• c.

Tags

8.F.3

8.F.2

Elena and Lin are training for a race. Elena runs her mile a constant speed of 7.5 miles per hour.Lin’s times are recorded every minute: Who finished their mile first?

• Elena
• Lin

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8.F.3

8.F.2

Elena and Lin are training for a race. Elena runs her mile a constant speed of 7.5 miles per hour.Lin’s times are recorded every minute: This is a graph of Lin’s progress. Draw a graph to represent Elena’s mile on the same axes.(Show Your Work) For these models, is distance a function of time? Is time a function of distance? Explain how you know.(Short Answer)

Tags

8.F.3

8.F.2