Which of the following functions best describes this graph?

A. y = x^2 + x - 12
B. y = x^2 - 9x + 18
C. y = x^2 + 9x + 18
D. y = x^2 - 5x + 6​

Which of the following functions best describes this graphA y x2 x 12B y x2 9x 18C y x2 9x 18D y x2 5x 6 class=