Question

Determine the equation of the circle graphed below. Circle Standard Form: Center: (h, k). Radius: r. (x-h) ^2+(y-k) ^2=r^2. Center: (-7, 6). Radius: 6.

Answer 1

Using (x - h)^2 + (y - k)^2 = r^2 with (h,k)=(-7,6) and r=6:

Standard form: (x + 7)^2 + (y - 6)^2 = 36

Optional expanded form: x^2 + y^2 + 14x - 12y + 49 = 0