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 $ .