Question

A circle is represented by the equation shown below.

(x - 7)2 + (x - 8)2 = 121

Which statement is true?
Answer
The circle is centered at (7, 8) and has a radius of 11.
The circle is centered at (-7, -8) and has a radius of 11.
The circle is centered at (7, 8) and has a diameter of 11.
The circle is centered at (-7, -8) and has a diameter of 11.

Answer 1

first one

Answer 2

thanks

Answer 3

as on comparing with the original equation
(x-a)2+(y-b)2=r2