Question

Consider the set of all lines px + qy + r = 0 such that 3p + 2q + 4r = 0 . Which one of the following statements is true? (A) The lines are concurrent at the point (3/4, 1/2).
(B) Each line passes through the origin.
(C) The lines are all parallel (D) The lines are not concurrent [JEE Main 2019]

Answer 1

Answer:

A

Step-by-step explanation:

if we put the value we find both the eq same

you may have doubt in B if you put value of P q r=0

but origin is x=0 and y=0

hope it help you

Answer 2

Answer:

Please see the attachment