- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
One equation of a pair of dependent linear equations is \( -5 x+7 y=2 \). The second equation can be
(A) \( 10 x+14 y+4=0 \)
(B) \( -10 x-14 y+4=0 \)
(C) \( -10 x+14 y+4=0 \)
,b>(D) \( 10 x-14 y=-4 \)
Given:
One equation of a pair of dependent linear equations is \( -5 x+7 y=2 \).
To do:
We have to find the second equation.
Solution:
We know that,
The condition for dependent linear equations is,
$\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}=\frac{1}{k}$
\( -5x+7y-2=0 \)
Here,
$a_1=-5, b_1=7, c_1=-2$
For $k=2$,
$a_2=2(-5)=-10, b_2=2(7)=14, c_2=2(-2)=-4$
Therefore,
The required dependent linear equation is $a_2x+b_2y+c_2=0$, i.e., $-10x+14y-4=0$
$\Rightarrow 10x-14y+4=0$
Advertisements