Question

7.

What are the coordinates of the center of the circle whose equation is (x – 9)2 + (y + 4)2 = 1?

(−9, 4)

(3, −2)

(9, −4)

(−3, 2)

Answer 1

x-9=0 => x=9

y+4=0 => y=-4

=> (9,-4)