The vertex form of the equation of a parabola is x = (y - 4) 2 + 27.

What is the standard form of the equation?

A. x = y2 + 8y + 27

B. x = 4y2 - 8y + 43

C. x = y2 - 8y + 43

D. x = y2 + y + 15

Since the vertex formula of an equation is x = a (x-h) ^2 + k and the standard form of an equation is y = ax^2 + bx + c, the answer to the math question presented above would be letter c. x = y^2 - 8y + 43. I arrived to this answer by solving (y-4) ^2 and adding the equation to 27.