Circle And System Of Circles Question 149
Question: Which of the following line is a diameter of the circle $ x^{2}+y^{2}-6x-8y-9=0 $
Options:
A) $ 3x-4y=0 $
B) $ 4x-3y=9 $
C) $ x+y=7 $
D) $ x-y=1 $
Show Answer
Answer:
Correct Answer: C
Solution:
Centre (3, 4) is satisfying only $ x+y=7 $ .