Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 5 - Linear Functions - 5-1 Rate of Change and Slope - Practice and Problem-Solving Exercises: 37

Answer

m=−$\frac{22}{455}$

Work Step by Step

To find the slope, we use the formula m=$\frac{y2-y1}{x2-x1}$. We plug in the x and y values from the given coordinate pairs: m=$\frac{3-5.2}{3.25-(-42.25)}$ We simplify above and below the fraction bar with subtraction: m=−$\frac{2.2}{45.5}$ We write this as a fraction of whole numbers by multiplying by $\frac{10}{10}$: m=−$\frac{22}{455}$
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