AP EAMCET · Maths · Straight Lines
If the straight lines \(2 x-y+1=0\), \(4 x+y+2=0\) and \(x+y-k=0\) are concurrent, then \(k\) equals
- A \(\frac{1}{2}\)
- B 2
- C -2
- D \(\frac{-1}{2}\)
Answer & Solution
Correct Answer
(D) \(\frac{-1}{2}\)
Step-by-step Solution
Detailed explanation
Given lines, \[ \begin{array}{r} 2 x-y+1=0 \\ 4 x+y+2=0 \\ x+y-k=0 \end{array} \] are concurrent.…
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