Question

Which of the following circles have their centers on the x-axis? Check all that apply. answer options in comments

Answer 1

General equation of a circle with centre (a, b) and radius r
\[(x-a)^2+(y-b)^2=r^2\]
Can you try now?

Answer 2

thats not any of the answers though

Answer 3

@ash2326

Answer 4

if center is (1, 2) then equation
would be
\[(x-1)^2+(y-2)^2=r^2\]
Now we need to have centre at x - axis. If a point is on x- axis, what'd be the value of x and y?