Circle And System Of Circles Question 326
Question: The line $ y=mx+c $ will be a normal to the circle with radius r and centre at (a, b), if
Options:
A) $ a=mb+c $
B) $ b=ma+c $
C) $ r=ma-b+c $
D) $ r=ma-b $
Show Answer
Answer:
Correct Answer: B
Solution:
Normal passes through centre, therefore $ b=ma+c $ .