The equation of a circle is (x - 3)2 + (y - 5)2 = 81. Determine the coordinates of the center of the circle and the length of the radius.
answers :
Center (-3, -5), radius is 9
Center (3, 5), radius is 9
Center (-5, -3), radius is 81
Center (5, 3), radius is 81

Question

The equation of a circle is (x - 3)2 + (y - 5)2 = 81. Determine the coordinates of the center of the circle and the length of the radius.
answers :
 Center (-3, -5), radius is 9 
   Center (3, 5), radius is 9 
   Center (-5, -3), radius is 81 
   Center (5, 3), radius is 81

anonymous · Answer

wouldn't it be the second one ?

anonymous · Answer

Yes, I'm pretty sure you are correct. Horizontal shift to the right three, Vertical shift up five, and the length of the radius is the sqrt(81), or nine.

anonymous · Answer

thank you. (:

anonymous · Answer

Np :D