1)The center of a circle is at (−3, 1) and its radius is 9.
What is the equation of the circle?
(x+3)2+(y−1)2=81
3)
The equation of a circle is (x+4)2+(y−5)2=121.
What is the center and radius of the circle?
center: (−4, 5); radius: 11
4)
What is the greatest distance, in feet, a person could be from the lamp and be detected?
3 ft
5)
What is the diameter, in meters, of the circular area that gets watered by the sprinkler?
12 m
