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TS EAMCET · Maths · Pair of Lines

The combined equation of the straight lines of the form \(y=k x+1\) (where \(k\) is an integer) such that the point of intersection of each with the line \(3 x+4 y=9\) has an integer as its \(x\)-coordinate is

  1. A \((y+x+1)(y+2 x-1)=0\)
  2. B \((y+x-1)(y+2 x+1)=0\)
  3. C \((y+x+1)(y+2 x+1)=0\)
  4. D \((y+x-1)(y+2 x-1)=0\)
Verified Solution

Answer & Solution

Correct Answer

(D) \((y+x-1)(y+2 x-1)=0\)

Step-by-step Solution

Detailed explanation

Given, \[ y=k x+1 \] and \[ 3 x+4 y=9 \] Put the value of \(y\) by Eq. (i) in Eq (ii), we get…