The equation of a circle is x^2 + 6x + y^2 - 2y = 15. What are the center and radius of the circle? Please show work.
Added by Mary S.
Step 1
First, we need to rewrite the equation of the circle in standard form, which is (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center of the circle and r is the radius. To do this, we need to complete the square for both x and y terms. For x^2 + 6x, we add Show more…
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