Answer
$$5\sqrt{5}$$
Work Step by Step
Using the distance formula, we find:
$$\sqrt{\left(-2-8\right)^2+\left(4-\left(-1\right)\right)^2}\\ \sqrt{125} \\ 5\sqrt{5}$$
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 - 9.2 Graph and Write Equations of Parabolas - 9.2 Exercises - Mixed Review - Page 625: 70
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