Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 4 - Section 4.1 - Solving Systems of Linear Equations by Graphing - Exercise Set - Page 291: 17

Answer

$\{(1,0)\}$

Work Step by Step

Graph each line (plot two points per line, such as the interceptcs) $ \begin{array}{lllllll} & & & & & & \\ 4x+y=4 & & & | & 3x-y=3 & & \\ x=0 & & y=0 & | & x=0 & & y=0\\ & & & & & & \\ 4x+y=4 & & 4x+0=4 & | & 0-y=3 & & 3x-0=3 \\ y=4 & & x=1 & | & y=-3 & & x=1\\ (0,4), & & (1,0) & | & (0,-3) & & (1,0)\\ & & & & & & \end{array} $ Plot the pairs of points and the accompanying lines. Determine intersection points, if any. (see attached image) There is an intersection point, the solution set is $\{(1,0)\}$
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