Question

9. Use the given information to write the standard equation of

the circle.
The center is (2, 2). A point on the circle is (5, 6).
[A] (x - 2)² +(y-2)2 = 49
[B] (x - 2) +(y-2)² = 25
[C] (x + 2)² + (y + 2)° = 25
[D] (x - 2) +(y-2)² = 5

Answer 1

(x-2)²+(y-2)²=25

Explanation:

find out radius' square first

r² = (5-2)²+(6-2)²

r²= 25

so the equation is

(x-2)²+(y-2)²=r²=25