Andy completes the square for the function y = x^2 + 6x -8 which of the following functions reveals the vertex of the parabola? a. y = (x + 4)^2 - 18 b. y = (x + 3)^2 - 17 c. y = (x + 6)^2 - 17 d. y = (x + 2)^2 - 18

B. y = (x + 3)^2 - 17

Step-by-step explanation:

When Andy completes the square, he adds and subtracts the square of half the x-coefficient. That is, he adds and subtracts (6/2)² = 9:

... y = x² +6x +9 -8 -9

... y = (x² +6x +9) -17

... y = (x +3)² -17 . . . . . . . . matches selection B

no one knows lol

step-by-step explanation:

i believe the answer is c.