Problema Solution
A circle is centered at (3, 8) and is tangent to the x-axis. Write its equation in standard form.
Answer provided by our tutors
The radius of the circle is: r = 8 (because the circle is touching the x-axis)
the equation of the circle in standard for is:
(x - 3)^2 + (y - 8)^2 = 8^2
(x - 3)^2 + (y - 8)^2 = 64.