Grade 8 | Unit 5 | Lesson 8: Linear Functions | Practice Problems

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Kiran and Clare like to race each other home from school. They run at the same speed, but Kiran's house is slightly closer to school than Clare's house. On a graph, their distance from their homes in meters is a function of the time from when they begin the race in seconds. As you read the graphs left to right, would the lines go up or down?

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What is different about the lines representing Kiran's run and Clare's run?

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What is the same about the lines representing Kiran's run and Clare's run?

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Write an equation for each line. Description:

Five lines. Green line, horizontal through ( 0 comma negative 2 ). Red line through ( 0 comma 5 ) and ( 1 comma 7 ). Yellow line through ( 0 comma 5 ) and ( 1 comma 2 ). Black line through ( 0 comma negative 5 ) and ( 5 comma 4 ). Blue line, vertical, through ( 5 comma 0 ).

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