Algebra 1

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

Chapter 5 - Linear Functions - 5-1 Rate of Change and Slope - Practice and Problem-Solving Exercises - Page 298: 56



Work Step by Step

To find the slope of a line, we use the equation m=$\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$. It's given that $x_{1}$=a $x_{2}$=-a $y_{1}$=-b $y_{2}$=-b, so all we need to do is plug the givens into the slope equation. m=$\frac{-b-(-b)}{-a-a}$=$\frac{0}{-2a}$=0
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