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 3.5 - Determinants and Cramer’s Rule - Exercise Set - Page 240: 26

Answer

parallel lines all are having no common point.

Work Step by Step

We will have to re-arrange the given equations as: $2x-3y=7$ and $4x-6y=3$ Need to apply Cramer's Rule. $x=\dfrac{D_x}{D}$; $y=\dfrac{D_y}{D}$ Now, $D=\begin{vmatrix}2&-3\\4&-6\end{vmatrix}=0$; $D_x=\begin{vmatrix}7&-3\\3&-6\end{vmatrix}=-42+9=33$; $D_y=\begin{vmatrix}2&7\\4&3\end{vmatrix}=6-28=-22$ Hence, we get parallel lines all are having no common point.
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.