Answer
$\sqrt 80$ units
Work Step by Step
(-4,1) and (4,5)
To find the distance between the two points we need to use the distance formula
$\sqrt (x2-x1)^{2} + (y2-y1)^{2}$
$\sqrt (4+4)^{2} + (5-1)^{2}$
$\sqrt (8)^{2} + 4^{2}$ = $\sqrt 80$ units
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 10 - Review Exercises - Page 485: 2c
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