the following equation with the description of the parabola that is its graph. y = (x+9)+7 oose the correct answer below. A. The parabola y = (x+9) +7 has vertex (9,- 7) and opens up. B. The parabola y = (x+9) + 7 has vertex (-9,7) and opens up. C. The parabola y = (x+9)2 +7 has vertex (-9,- 7) and opens up. D. The parabola y = (x+9) +7 has vertex (9,7) and opens up. E. The parabola y = (x+9) + 7 has vertex (-9,7) and opens down. F. The parabola y = (x+9) + 7 has vertex (9,- 7) and opens down. G. The parabola y = (x+9) + 7 has vertex (-9,-7) and opens down. H. The parabola y = (x+9) +7 has vertex (9,7) and opens down.