Answer
The two sets of terms should be added, not subtracted.
Work Step by Step
Using the distance formula, we find:
$$\sqrt{\left(2-\left(-4\right)\right)^2+\left(8-3\right)^2}\\ \sqrt{61}$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 9 Quadratic Relations and Conic Sections - 9.1 Apply the Distance and Midpoint Formulas - 9.1 Exercises - Skill Practice - Page 617: 21
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