Two circles of radius 4 are tangent to the graph of y = 4x at the point (1, 2). Find equations of these two circles. (Enter your answers as a comma-separated list.) X Need Help? Read It Viewing Saved Work Revert to Last Response Submit AnswerOA : (X - 1+212 ) 2 + (y- 2- 2,52 12 =16 OB: ( X- 1 - 2527 + 14- 2+2 52) =16 Explanation X { draw the graphs assume the circle are OA and OB the tangent : 4 = x + 1 AB : Xty = 3 and 1= 4 A: ( 1 - 212 , 2 +2, / 2 ) B: (1+ 2 5 2 , 2 - 2, /2 ) OA : ( X - 1+212) + (y- 2-252) =16 OB: (X - 1 - 212) + 14 - 2+252)=16