Solution:Concept- To solve this problem, we must apply the concept that the endpoints of diameter subtend a right angle at the circle, and the circle whose endpoints of diameter are (a, b) and (c, d) has the equation You can find the location of k using these concepts.
Since, join of and subtends at It is a diameter.
Equation is lies on it
Since, otherwise will be .
Hence, the correct option is 3.