A teenager who is 5 feet tall throws an object into the air. The

quadratic function f(x) = - 16x2 + 64x + 5 is where f(x)
is the height of the object in feet and x is the time in seconds.
The function in vertex form is

A f(x) = -16(x -2)^2 - 59
B f(x) = -16(x-2)^2 + 69
C f(x) = -16(x-2)^2 + 5
D f(x) = -16(x-2)^2 - 11

B f(x) = -16(x-2)^2 + 69