If f(x) = 2x² - 8x + 9, which statement regarding the vertex form of f(x) is true?

A.)  In vertex form, f(x) = 2(x - 2)² + 1 and therefore has a minimum value of 1.
B.)  In vertex form, f(x) = 2(x - 2)² + 1 and therefore has a minimum value of -2.
C.)  In vertex form, f(x) = 2(x - 2)² + 4.5 and therefore has a minimum value of 4.5.
D.)  In vertex form, f(x) = 2(x - 2)² + 4.5 and therefore has a minimum value of -2.

The expression 3x² - 33x - 180 can be factored into the form a(x + b)(x + c), where a, b, and c are constants, to reveal the zeros of the function defined by the expression.  What are the zeros of the function defined by 3x² - 33x - 180?  

Select all that apply.

A.)  -15
B.)  -10
C.)  -6
D.)  -4
E.)  4
F.)  6
G.)  10
H.)  15