circle P is graphed in the coordinate plane with center (1,-3). circle p contains the point (7,-5). what is the equation of the circle p

Answer 1

(x-1)^2 + (y+3)^2 = r^2

(7-1)^2 + (-5+3)^2 =r^2

36 + 4 = r^2

r^2 = 40

r = sqr40 = 2sqr10

r^2 = 40

(x-1)^2 + (y+3)^2 = 40 is the equation of the circle with center (1,-3) and with (7,-5) a point on the circle