Unit 5 - Lesson 3 - Grade 8: Illustrative Mathematics

Match the description with its diagram.The circumference, C, of a circle with radius, r.

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Match the description with its diagram.The distance in miles, d, that you would travel in hours if you drive at 60 miles per hour.

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Match the description with its diagram.The output when you triple the input and subtract 4.

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Match the description with its diagram.The volume of a cube, v, given its edge length, s.

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Record your answers to these questions in the table provided.Write an equation for each description that expresses the output as a function of the input.Find the output when the input is 5 for each equation.Name the independent and dependent variables of each equation.

If Jada has 4 quarters, how many dimes does she have?

If Jada has 10 quarters, how many dimes does she have?

Is the number of dimes a function of the number of quarters? If yes, write a rule (that starts with d =...) that you can use to determine the output, d, from a given input, q. If no, explain why not.

If Jada has 25 dimes, how many quarters does she have?

If Jada has 30 dimes, how many quarters does she have?