Two Grade 7 students, Monique and Matt, both solved the following math problem: If the temperature drops from 7°F to −17°F, by how much did the temperature decrease? The students came up with different answers. Monique said the answer is 24°F, and Matt said the answer is 10°F.
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1.
Show the distance between 7°F to −17°F on a vertical number line,
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2.
Write a forumla to show the distance (using subtraction and absulate value)
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3.
Monique said the answer is 24°F, and Matt said the answer is 10°F. Who is correct?