Question

Which of the following circles have their centers in the third quadrant?
A. (x + 14)2 + (y - 14)2 = 84
B. (x + 16)2 + (y + 3)2 = 17
C. (x + 3)2 + (y - 6)2 = 44
D. (x + 9)2 + (y + 12)2 = 36

Answer 1

The third quadrant has both a negative x and y coordinate. To find this, find the ones with both x+a number and y+a number since the form is
(x−h)2+(y−k2)=r2 So im comfused ...

Answer 2

equation of a circle (x-h)^2 + (y-k)^2 = r^2
center (h,k) and radius r

Answer 3

Thank you so much I finally get it now @triciaal

Answer 4

great!!