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 - Test - Page 250: 1

Answer

$\{(2,4)\}$.

Work Step by Step

First equation $x+y=6$. Plug $y=0$ into the equation. $\Rightarrow x+0=6$ $\Rightarrow x=6$ $x−$ intercept $A=(6,0)$. Plug $x=0$ into the equation. $\Rightarrow 0+y=6$ $\Rightarrow y=6$ $y−$ intercept $B=(0,6)$. Now the second equation $4x-y=4$. Plug $y=0$ into the equation. $\Rightarrow 4x-0=4$ $\Rightarrow 4x=4$ $\Rightarrow x=1$ $x−$ intercept $C=(1,0)$. Plug $x=0$ into the equation. $\Rightarrow 4(0)-y=4$ $\Rightarrow -y=4$ $\Rightarrow y=-4$ $y−$ intercept $D=(0,-4)$. Draw two lines using intercept points. Graph is shown below in the image. The intersection point of both lines is the solution. Here we have the intersection point at $E=\{(2,4)\}$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.