College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 2 - Test - Page 196: 10

Answer

The equation of the parallel line is $y=-\frac{2}{3}x-\frac{1}{3}$ The equation of the perpendicular line is $y=\frac{3}{2}x+3$

Work Step by Step

First, let's rearrange the line into the form y=mx+b: $2x+3y=6$ $3y=-2x+6$ $y=-\frac{2}{3}x+2$ Parallel lines have the same slope. Since we have the slope and a point, we can find the equation of the parallel line by first finding the y-intercept (b): $-1=-\frac{2}{3}(1)+b$ $-1=-\frac{2}{3}+b$ $-1+\frac{2}{3}=b$ $-\frac{1}{3}=b$ So, the equation of the parallel line is $y=-\frac{2}{3}x-\frac{1}{3}$ The slope of a perpendicular line is the negative inverse: $-\frac{2}{3} \rightarrow \frac{3}{2}$ Now that we have the slope and a point, we can find the equation of the perpendicular line by first finding the y-intercept (b): $3=\frac{3}{2}(0)+b$ $b=3$ So, the equation of the perpendicular line is $y=\frac{3}{2}x+3$
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