19 1) Natalie shoots an arrow towards the sky
from the top of a 5 meters high building.
As the arrow flies, its height above the
ground can be modeled as the graph
shown. The vertex on the graph
represents which of the following in the
context of the flight of the arrow?
A. the time elapsed and the height at
which the vertical speed of the arrow is at
a maximum
Time second
B. the time elapsed and the height of the
arrow when it reaches its maximum height
C. the time at which the arrow is halfway through its flight.
D. the time at which the vertical speed of the arrow is zero because it has hit the ground