X 2 6x y 2 7 July 8, 2019 16 32 64 128 X 2 y 2 6x 7 0 The circle c has equation x 2 6x y 2 2y 7 X 2 y 2 6x 7 0 standard form The curves x 2 y 2 6x 24y 72 0 2) y = x ^ 2 + 6x + 7