Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

APPENDIX B - Coordinate Geometry and Lines - B Exercises - Page A 16: 57

Answer

Since these two lines do not have equal slopes, they are not parallel. The point of intersection is $(1,-2)$

Work Step by Step

The slope-intercept form of the equation of a line is $~~y=mx+b~~$ where $m$ is the slope and $b$ is the y-intercept. We can find the slope of the line $2x-y=4$: $2x-y = 4$ $y = 2x-4$ The slope of the line is $2$ We can find the slope of the line $6x-2y=10$: $6x-2y = 10$ $2y = 6x-10$ $y = 3x-5$ The slope of the line is $3$ Parallel lines have equal slopes. Since these two lines do not have equal slopes, they are not parallel. We can find the x-coordinate of the point of intersection: $2x-4 = 3x-5$ $x = 1$ We can find the y-coordinate of the point of intersection: $y = 2x-4$ $y = 2(1) -4$ $y = -2$ The point of intersection is $(1,-2)$
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