Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.9 - Distance and Midpoint Formulas; Circles - Exercise Set - Page 280: 11


$d\approx 4.47$

Work Step by Step

RECALL: The distance between the points $(x_1, y_1)$ and $x_2, y_2)$ can be found using the distance formula: $d=\sqrt{x_1-x_2)^2+(y_1-y_2)^2}$ Solve for the distance between the two points using the formula above to obtain: $d=\sqrt{[3.5-(-0.5)]^2+(8.2-6.2)^2} \\d=\sqrt{(3.5+0.5)^2+2^2} \\d=\sqrt{4^2+2^2} \\d=\sqrt{16+4} \\d=\sqrt{20} \\d\approx 4.47$
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