AP EAMCET · Maths · Straight Lines
Variable straight lines \(y=m x+c\) make intercepts on the curve \(y^2-4 a x=0\) which subtend a right angle at the origin. Then the point of concurrence of these lines \(y=m x+c\) is
- A \((4 a, 0)\)
- B \((2 a, 0)\)
- C \((-4 a, 0)\)
- D \((-2 a, 0)\)
Answer & Solution
Correct Answer
(A) \((4 a, 0)\)
Step-by-step Solution
Detailed explanation
On homogenisation of the curve \(y^2-4 a x=0\) by line \(y=m x+c\), we are getting combined equation of straight lines which subtend a right angle at the origin, so…
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