Question

What are the coordinates and radius of the circle whose equation is x raise to power 2 plus y raise to power 2 minus 2x minus 4y minus 4 equal to zero.

Answer 1

ever think of just typing the math? All those words are just annoying.

x^2 + y^2 - 2x - 4y - 4 = 0
x^2-2x + y^2-4y = 4
x^2-2x+1 + y^2-4x+4 = 4+1+4
(x-1)^2 + (y-2)^2 = 3^2
hence the bot's unusually correct answer above.

Answer 2

The coordinates of the center of the circle are (1,2). The radius of the circle is 3.