Which choice converts this standard parabolic equation to its simplified form? y = 2(x - (-3))^2 + (-5) A. y = 2x^2 + 12x + 13, B. x = 2y^2 + 5y + 9, C. y = 4x^2 + 4x + 4, D. y = 2x^2 + 5x + 9

we "cheat" by only considering the constant term: 
It must be 2*9-5=13 (why?) 
So A 

:)