SAT Math Practice Question
The average number of students per classroom at Central High School from 2000 to 2010 can be modeled by the equation $y=0.56 x+27.2$, where $x$ represents the number of years since 2000 , and $y$ represents the average number of students per classroom. Which of the following best describes the meaning of the number 0.56 in the equation?
- A.The total number of students at the school in 2000
- B.The average number of students per classroom in 2000
- C.The estimated increase in the average number of students per classroom each year
- D.The estimated difference between the average number of students per classroom in 2010 and in 2000
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