Answer
$\sqrt {(x_2-x_1)^2+(m_2x_2-m_1x_1)^2}$
Work Step by Step
Given $P(x_1,m_1x_1)$ and $Q(x_2,m_2x_2)$, we have $d(P,Q)=\sqrt {(x_2-x_1)^2+(m_2x_2-m_1x_1)^2}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 2 - Graphs and Functions - 2.5 Equations of Lines and Linear Models - 2.5 Exercises - Page 247: 81
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