College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 2 - Section 2.1 - The Distance and Midpoint Formulas - 2.1 Assess Your Understanding: 14

Answer

A.

Work Step by Step

The answer is A, because the distance formula is really the pythagorean theorem equation, $a^2+b^2=c^2$, solved for c, or the distance.
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