Precalculus (6th Edition) Blitzer

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

Chapter 6 - Section 6.6 - Vectors - Exercise Set - Page 782: 13

Answer

$\mathbf{v}=10\mathbf{i}+6\mathbf{j}$

Work Step by Step

Here, $\begin{align} & {{x}_{1}}=-4 \\ & {{x}_{2}}=6 \\ & {{y}_{1}}=-4 \\ & {{y}_{2}}=2 \\ \end{align}$ Substituting the value of ${{x}_{1}},{{y}_{1}},{{x}_{2}},{{y}_{2}}$ we get, $\begin{align} & \mathbf{v}=\left[ 6-\left( -4 \right) \right]\mathbf{i}+\left[ 2-\left( -4 \right) \right]\mathbf{j} \\ & =10\mathbf{i}+6\mathbf{j} \end{align}$
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