Mathematics
Grade-8
Easy

Question

2x – 3y = 8and 4x – 6y = 9 are ___________.

  1. Consistent
  2. Intersecting
  3. Parallel
  4. Perpendicular to each other

hintHint:

There are countless possible answers for a system of linear equations. The number that makes every equation in a system of linear equations true is the system's solution. The answers to the two variables in the two equations will be these points' coordinates.
In this question, we have asked that the given set of equations  2x – 3y = 8 and 4x – 6y = 9 
are Consistent, Inconsistent, Intersecting or Perpendicular to each other.

The correct answer is: Parallel


    There is only one solution to the two linear equations if both lines intersect at a single location.
    We have given the equations as: 2x – 3y = 8and 4x – 6y = 9.
    Comparing both the equations with a1, b1, c1 and a2, b2, c2, we get:
    a1=2, b1=-3, c1=8
    a2=4, b2=-6, c2=9
    Now equating then, we get:
    fraction numerator a 1 over denominator a 2 end fraction equals 2 over 4
fraction numerator b 1 over denominator b 2 end fraction equals fraction numerator negative 3 over denominator negative 6 end fraction
fraction numerator c 1 over denominator c 2 end fraction equals 8 over 9
H e n c e comma space w e space g e t colon
1 half equals 1 half not equal to 8 over 9
    Therefore the system is inconsistent. 

    Here in this question we were given two equations 2x – 3y = 8 and 4x – 6y = 9, where we were supposed to find the system is consistent or not so using the system of linear equations, we found that the system is inconsistent.

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