Answer
$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
Work Step by Step
The distance between two points can be modeled with the Pythagorean theorem.
Thus, the distance between $P_1$ and $P_2$ would be:
$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 7 - Section 7.2 - The Parabola - 7.2 Assess Your Understanding - Page 514: 1
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