which type of linear equations 2x-3y=4 and 6x-9y=12 represent
Answers
The given linear equations are:
2x - 3y = 4 and 6x - 9y = 12
Here, = 2, = - 3, = 4 and = 6, = - 9, = 12
We have to find, the given linear equations is.
Solution:
= ,
= and
=
∵ = = = has an infinite number of solutions.
Thus, the given linear equations has infinite number of solutions.
Given : 2x-3y=4
6x-9y=12
To Find : which type of linear equations 2x-3y=4 and 6x-9y=12 represent
Solution:
a₁x +b₁y +c₁=0
a₂x +b₂y +c₂=0
a₁/a₂ ≠ b₁/b₂
then System is called consistent and have a unique Solution
Lines intersect each other at unique point
a₁/a₂ = b₁/b₂ = c₁/c₂
then Consistent ( infinite solution ) as both Equation represent same line
a₁/a₂ = b₁/b₂ ≠ c₁/c₂
Inconsistent ( no Solution )
as Lines are parallel and never intersect each other
2x-3y=4
6x-9y=12
a₁ = 2 b₁ = - 3 c₁ = 4
a₂ = 6 b₂ = -9 c₂ = 12
a₁ /a₂ = 2/6 = 1/3
b₁/b₂ = -3/-9 = 1/3
c₁/c₂ = 4/12 = 1/3
a₁/a₂ = b₁/b₂ = c₁/c₂
Hence ( infinite solution ) as both Equation represent same line
Both equations are of same line
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