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AP EAMCET · Maths · Straight Lines

\(L_1\) and \(L_2\) are two lines having slopes 2 and \(-\frac{1}{2}\) respectively. If both \(L_1\) and \(L_2\) are concurrent with the lines \(x-y+2=0\) and \(2 x+y+3=0\), then sum of the absolute values of the intercepts made by the lines \(L_1\) and \(L_2\) on the coordinate axes is

  1. A \(2\)
  2. B \(7\)
  3. C \(12\)
  4. D \(9\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(7\)

Step-by-step Solution

Detailed explanation

\(x-y+2=0\) (1) \(2x+y+3=0\) (2) (1) + (2): \(3x+5=0 \Rightarrow x = -\frac{5}{3}\) Subst. \(x\) into (1): \(-\frac{5}{3}-y+2=0 \Rightarrow y = \frac{1}{3}\) Intersection point: \((-\frac{5}{3}, \frac{1}{3})\) Line \(L_1\): \(m_1=2\) \(y - \frac{1}{3} = 2(x + \frac{5}{3})\)…