Answer
$\sqrt 5$
Work Step by Step
$d(P_1,P_2)=\sqrt {(x_2-x_1)^2+(y_2-y_1)^2}$ $d((0,0),(-2,1))=\sqrt {(-2-0)^2+(1-0)^2}=\sqrt {4+1}=\sqrt 5$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 1 - Graphs - 1.1 The Distance and Midpoint Formulas - 1.1 Assess Your Understanding - Page 7: 20
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
