Pair Of Straight Lines Question 125
Question: Angles made by the lines represented by the equation $ xy+y=0 $ with $ y- $ axis are
Options:
A) $ 0^{o} $ and $ 90^{o} $
B) $ 0^{o} $ and $ 30^{o} $
C) $ 30^{o} $ and $ 60^{o} $
D) $ 30^{o} $ and $ 90^{o} $
Show Answer
Answer:
Correct Answer: A
Solution:
Here the lines are $ x=-1 $ and $ y=0 $ represented by $ xy+y=0 $ .
Obviously line $ y=0 $ makes an angle of 90° with y-axis and x = -1 make an angle of 0° with y-axis.
BETA
