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Key Features of Graphs

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This video is for the redesigned SAT which is for you if you are taking the SAT in March 2016 and beyond.

Key Features of Graphs
Ruby puts a dish of macaroni and cheese into the refrigerator. The dish was 80 degrees Fahrenheit (°F) when she put it in, and the inside of the refrigerator was 40°F. The dish cooled quickly at first, then slowed as it approached the temperature inside the refrigerator. Which of the following graphs in the mT-plane could best represent the temperature, T, in degrees Fahrenheit, m minutes after Ruby put the dish in the refrigerator?
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