Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 12 - Matrices - 12-6 Vectors - Practice and Problem-Solving Exercises: 25

Answer

$$\langle-8,20\rangle$$

Work Step by Step

To scale vectors in component form, multiply each component by the scale factor, in this case, $-4$. $$-4\vec{w}=-4\langle 2,-5\rangle=\langle (-4)\times 2,(-4)\times (-5)\rangle=\langle-8,20\rangle$$
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