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Scatter Plots and Trend Lines
For each table, make a scatter plot of the data. Describe the type of correlation the scatter plot shows. ( Positive, Negative, no correlation)1. 2.
Enrollment Year 2009 2010 2011 2012 2013 2014 Enrollment 1582 1635 1674 1723 1745 1801 The table shows the enrollment at Koolsville High during the years 2009-2014. Make a scatter plot of the data and draw a trend line. Let x = the number of years since 2009.
a. Write the equation of the line of best fit.
b. Estimate the enrollment in 2020.
Justify your prediction algebraically and graphically.
Use the table below for Exercises 4 through 7.
4. Make a scatter plot of the data pairs (years since 1999, revenue).
5. Draw the line of best fit for the data.
Write an equation for the line of best fit.
7. According to the data, what will the estimated grossrevenue be in 2015?
Summary: Summarize today’s lesson in complete sentences using your own words.