Question

Find the center of the circle whose equation is (x - 8) 2 + (y + 2) 2 = 64

The parabola whose equation is y 2 = 12x has directrix

Answer 1

The center of a circle given the equation in the form (x-h)^2 + (y-k)^2 = r^2 is (h,k). x-8 shows that h is 8, y+2 shows that k is -2, meaning the center is (8, -2)