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.

Center (-3, 5), radius is 9

Center (3, 5), radius is 9

Center (-5, -3), radius is 81

Center (5, 3), radius is 81

Answer 1

http://www.homepages.dsu.edu/palmerj/math_102/Algebr02o.gif

Answer 2

compare the given equation with the equation in that link and see if you can figure out center and radius

Answer 3

idk im confused

Answer 4

wait would it be (-3,5) and radius 9?

Answer 5

@rational

Answer 6

Perfect!

Answer 7

yes! thanks

Answer 8

good job!