Question 1

An apple is launched directly upward at 64 feet per second from an
80-foot tall platform. The equation for this apple’s height h at time t
seconds after launch is h = -16t
2 + 64t + 80.
 Find the maximum height of the apple.

Accepted Answer

144 ft

Answer

128 ft

Answer

80 ft

Answer

2 ft

Question 2

An apple is launched directly upward at 64 feet per second from an
80-foot tall platform. The equation for this apple’s height h at time t
seconds after launch is h = -16t
2 + 64t + 80. How many seconds will it take for the apple to reach the ground?

Accepted Answer

5 sec.

Answer

6 sec.

Answer

2 sec.

Answer

4 sec.

Question 3

In science class, the students were asked to create a container to hold
an egg. They would then drop this container from a window that is 25
feet above the ground. If the equation of the container’s pathway can
be modeled the equation h = -16t^2 + 25, how long will it take the
container to reach the ground?

a. Find the maximum height of the container.

Accepted Answer

25 ft.

Answer

4.5 ft.

Answer

0 ft.

Answer

9 ft.

Question 4

In science class, the students were asked to create a container to hold
an egg. They would then drop this container from a window that is 25
feet above the ground. If the equation of the container’s pathway can
be modeled the equation h = -16t
2 + 25, how long will it take the
container to reach the ground?

b. How many seconds will it take for the container to reach the ground?

Accepted Answer

1.25 sec.

Answer

1 sec.

Answer

2 sec.

Answer

2.5 sec.

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