Precalculus (6th Edition) Blitzer

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

Chapter 1 - Section 1.5 - More on Slope - Exercise Set - Page 226: 11


point-slope form: $y+7=-2(x-4)$ general form: $2x+y-1=0$

Work Step by Step

Step 1. As the line is perpendicular to the line $x-2y-3=0$, we have its slope $m=-2$ Step 2. As the line passes through the point $(4,-7)$, we can write the line equation in point-slope form as $y+7=-2(x-4)$ Step 3. The above equation can be rewritten in general form as $y+7=-2x+8$ or $2x+y-1=0$
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