Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 5 - Linear Functions - 5-7 Scatter Plots and Trend Lines - Lesson Check - Page 337: 2


See attached:

Work Step by Step

Using the points given, use a graphing calculator to get the line of best fit or trend line's equation. Press the stat button. Go to edit under the edit menu. Type in the x-values (latitude) into column $L_{1}$ and y-values (temperature) into column $L_{2}$. Press the stat button again. Go to Calc menu and select LinReg(a+bx). Press calculate. You should get $y=-2.49x+137.62$
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