Which of the following is the equation of a circle that has a radius of 2.5 and its center at (4, -3)?
Question options:
A) (x - 4)^2 +(y + 3)^2 = 2.5
B) (x + 4)^2 + (y - 3)^2 =2.5
C) (x - 4)^2 + (y - 3)^2 = 6.25
D) (x + 4)^2 + (y - 3)^2 = 6.25
Since the equation for a circle is: (x - h)2 + (y - k)2 = r2,
and h = 4
and k = -3
and r = 2.5
the answer is: (x - 4)2 + (y - -3)2 = 2.52 ---> (x - 4)2 + (y + 3)2 = 6.25