College of the RedwoodsMathematics DepartmentLinear Algebra — Math 45Extra Credit Quiz #6Copyrightc 2006-2007 [email protected] Revision Date: December 9, 2006 Version 1.002Instructions. Place your solution in the space provided. All work must be your own.Exercise 1. Use linear algebra to produce the equation of the line of best fit for the following setof data.x 10 20 30 40 50y 15 12 18 17 20Set up the system of equations in matrix form, then show the calculations that lead to the coefficientsof the line of best fit. You may use Matlab to do any matrix operations and then copy the resultsinto your solution on this page. Use Matlab to plot the data and superimpose the line of best fit.Attach a printout of your plot and the M-file used to produce the plot.Solutions to Exercises 3Solutions to Exercisesy = 0.15x + 11.90
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