Dentify the radius and the center of a circle whose equation is (x – 5)² + y² = 81. The radius of the circle is ___ units. The center of the circle is at ( , ).

Question

asked Jul 21, 2021 147k views

1 Answer

Pls · Answer 1 · 2021-07-25T15:50:38+0000

Answer:

9 units

Center is at (5, 0)

Explanation:

The radius of the circle is equal to the square root of 81

√(81) = ±9

Since the radius of a circle must be positive the answer is 9 units.

The center of the circle is at (5, 0)