Question

The center of a circle is (h, 7) and the radius is 10. The circle passes through (3, -1). Find all possible values of h.

Answer 1

(h - 3)^2 + (7 - (-1))^2 = 10^2
solve for h

Answer 2

did u get it ?

Answer 3

well, hope you understand this

(h - 3)^2 + (7 - (-1))^2 = 10^2
(h - 3)^2 + 64 = 100
(h - 3)^2 = 100 - 64
(h - 3)^2 = 36
h-3 = +- sqrt(36)
h-3 = +- 6
h = 3 +- 6

h1 = 3+6 = 9
h2 = 3-6 = -3

so, the possibles values of h = (-3, 9)