Mathematics, 04.06.2020 13:01, lanakay2006
Due to the poor economy, a real estate investor lost 120 thousand dollars in
2008. Let the ordered pair (2008, -120) represent this relationship. The
investor did better in 2010 by earning 350 thousand dollars. Let the ordered
pair (2010, 350) represent this relationship. Ruben was asked to calculate the
average rate of change for the investor's earnings from 2008 to 2010.
To solve this, Ruben uses the slope formula to calculate the rate of change
between 2008, -120) and (2010, 350). The student's work is shown below:
(a) Using complete sentences, explain the two mathematical errors in the
student's reasoning.
(b) Calculate the correct rate of change between (2008, -120) and (2010,
350)
Answers: 1
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Mathematics, 22.06.2019 00:30, andy963936
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Due to the poor economy, a real estate investor lost 120 thousand dollars in
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