Question

The center of a circle is at (-5, 7) and its radius is 6 units. Which of the following is the equation for this circle?
A) (x - 5)2 + (y + 7)2 = 36
B) (x + 5)2 + (y - 7)2 = 36
C) (x - 5)2 + (y + 7)2 = 12
D) (x + 5)2 + (y - 7)2 = 12

Answer 1

Radius is always squared \(r^2\)

\((x+n)^2+(y+m)^2=r^2\)
N is the number of units to the horizontally it travels (x coordinate of the center)
M is the number of units to the vertically it travels (y coordinate of the center)

Answer 2

oh k, ty friend

Answer 3

so would it be C?

Answer 4

@dude