# 1.5 Cont. Warm-up (IN) Learning Objective: to create a scatter plot and use the calculator to find the line of best fit and make predictions. (same as.

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1.5 Cont. Warm-up (IN) Learning Objective: to create a scatter plot and use the calculator to find the line of best fit and make predictions. (same as last time!) Acuity and HW/INB check

Notes EX 1 – The table gives the average speed of an airplane during the first 10 minutes of a flight, with x in minutes and y in miles per hour. x12345678910 y180250290310400420410490520510 a. Draw a scatter plot and find the equation of the line of best fit.

b. Use your equation to predict the speed of a plane after 22 minutes. c. Use your calculator to find the regression line, then check your prediction. Correlation Coefficient – Indicates how closely the data points cluster around the least squares line r

HW – p. 40 #1-9, 15-20, 22, 27-35 Out – How can least squares lines be useful? Summary – I can remember… Challenge Problems! Activities online are EC, too! POW!!!!

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