Please help me answer the following.

Determine the standard and general form of a circle given the following conditions. Sketch its graph. 1. Center at the origin, r = 3 2. Center at (-3, -2), radius v6 3. Center at (-5,7), tangent to y - axis 4. Center at (-5,7), tangent to x - axis Given the equation, state the center and radius. 1. (x - 3)2 + (y + 3)2 - 1 = 0 2. x2 = 5- (y - 8)2 3. 4 - (x2 - 2x + 1) = (y2 +4 x + 4) (Note: Factor the terms inside the parenthesis.)