The table shows the numbers N (in millions) of students enrolled in elementary and secondary schools in
Question:
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(a) Use a graphing utility to create a scatter plot of the data. Let t represent the year, with t = 5
corresponding to 2005.
(b) Use the regression feature of the graphing utility to find a quartic model for the data. (A quartic model has the form at4 + bt3 + ct2 + dt + e, where a, b, c, d, and e are constant and t is variable.)
(c) Graph the model and the scatter plot in the same viewing window. How well does the model fit the data?
(d) According to the model, after 2014, when did the number of students enrolled in elementary and secondary schools fall below 48 million?
(e) Is the model valid for long-term predictions of student enrollment? Explain.
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a and c b N 0001231t 4 004723t 3 06452t 2 3783t 4121 The model fits the data well d Using the ...View the full answer
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The Common Core standards are a useful yardstick for measuring how well students are doing. My students consistently met or exceeded the Common Core standards for science. I believe in working with each student's individual learning styles to help them understand the material. If students were struggling with a concept, I would figure out a different way to teach or apply that concept. I was voted Teacher of the Year six times in my career. I also won an award for Innovative Teaching Style at the 2011 National Teaching Conference.
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