Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 3 - Section 3.1 - Systems of Linear Equations in Two Variables - Exercise Set - Page 190: 18

Answer

No solution

Work Step by Step

For the first equation $2x-y=-4$, the $x$ and $y$ intercepts are found as $(-2,0)$ and $(0,-4)$ by substituting $0$ for $y$ and $x$ values in the equation respectively. Similarly, for the second equation $4x-2y=6$, the $x$ and $y$ intercepts are found as $(1.5,0)$ and $(0,-3)$ by substituting $0$ for $y$ and $x$ values in the equation respectively. Now, graph each equation as a line passing through the intercepts. It is observed that the graphs of two lines are parallel lines and they do not intersect at all. Intersection of the lines indicate a solution and thus the given system has no solutions The graph is as below.
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