WBJEE · Maths · Straight Lines
Straight lines \(x-y=7\) and \(x+4 y=2\) intersect at \(B\). Points \(A\) and \(C\) are so chosen on these two lines such that \(A B=A C\). The equation of line \(A C\) passing through (2,-7) is
- A \(x-y-9=0\)
- B \(23 x+7 y+3=0\)
- C \(2 x-y-11=0\)
- D \(7 x-6 y-56=0\)
Answer & Solution
Correct Answer
(B) \(23 x+7 y+3=0\)
Step-by-step Solution
Detailed explanation
Given equations of lines are \(x-y=7\) ....(i) and \(x+4y=2\) ...(ii) By solving Eqs.(i) and (ii), we get the point \(B(6,-1)\) Let the slope of \(A C\) be \(m\) then, \(A B=A C\)…
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