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Status: Waiting for your answers.

81x2 + 9y2 - 648x + 90y + 792 = 0 is the general form of an ellipse. Write the equation of this conic section in standard form by filling in the appropriate values for each open response. Step 1: 81x2 - 648x + 9y2 + 90y =   Step 2: 81(x2 - 8x) + 9(y2 + y) =   Step 3: 81(x2 - 8x + ) + 9(y2 + y + ) =   + 81() + 9()   Step 4: 81(x - )2 + 9(y + )2 =   Step 5: (x - )2   (y + )2 +   = 1