The standard form of the equation of a parabola is x = y2 - 4y + 20.

What is the vertex form of the equation?

A. x = (y - 4) 2 + 4

B. x = (y - 2) 2 + 16

C. x = (y - 2) 2 + 4

D. x = (y - 4) 2 + 12

If you would like to find the vertex form of the equation, you can calculate this using the following steps:

x = y^2 - 4 * y + 20

x = (y - 2) ^2 - 4 + 20

x = (y - 2) ^2 + 16

The correct result would be B. x = (y - 2) ^2 + 16.