Back to Calculate average rate of change — Problem 5 · Task Set 11

HSF.IF.B.6 Tutor Intake — Average Rate of Change

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Grade 9·11 problems·~14 min·Common Core Math - HS Functions·group·hsf-if-b-6

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Procedures

A student is asked for the average rate of change of temperature from
6 AM to noon. The temperature at 6 AM was 54°F and at noon was 72°F.
The student answers "72°F." What is wrong with this answer?

The student gave the function value at noon instead of computing a rate.

The student should have averaged the two temperatures to get 63°F.

The student forgot to convert hours to minutes.

Nothing is wrong; 72°F is the correct average rate.