Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Section 10.3 - Simplifying Radical Expressions - Exercise Set - Page 704: 80



Work Step by Step

The distance formula is: $d = \sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$. This finds the distance $d$ between two points $(x_1,y_1)$ and $(x_2,y_2)$. Distances are always positive. $d = \sqrt{(1-(-2))^2+(-4-3)^2} = \sqrt{58} = 7.616$
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