Question: awrite down the center of the circle c x2 ...
a)Write down the center of the circle c: x2 + y2 -10x - 4y + k= 0 and find the radius length in terms of k.
b)The midpoint of a chord of c is (4,1) and its length is .
i)find the radius length of c.
ii)Hence find the value of k.
c)Find the slopes of the tangents to c from the point (-2,1).