When does the ball reach a maximum height?

• 0 seconds

• 3.8 seconds

• 1.9 seconds

What is the maximum height of the ball?

• 5 feet

• 60 feet

• 80 feet

When does the ball hit the ground?

• 0 seconds

• 3.8 seconds

• 2 seconds

When is the ball 40 feet high?

(select all that apply)

• 0 seconds

• 3.8 seconds

• 3 seconds

• .8 seconds

At what height is the ball tossed?

• 3 feet

• 0 feet

• 10 feet

• 16 feet

What is the domain of the function?

• 0 ≤ t ≤ 3.8

• 0 ≤ t ≤ 60

• 0 ≤ t ≤ 5

• 0 ≤ t ≤ ∞

A small marshmallow is launched straight up in the air with a slingshot.  The function, h, given by the equation h(t) = - 5t² +20t + 5 describes the height of the marshmallow in meters as a function of, t, in seconds since it was launched.

The marshmallow is launched from ______ feet above the ground

• 5

• 20

• -5

• 0

A small marshmallow is launched straight up in the air with a slingshot.  The function, h, given by the equation h(t) = - 5t² + 20t + 5 describes the height of the marshmallow in meters as a function of, t, in seconds since it was launched.

How many zeros make sense in this situation?

• 0

• 1

• 2

• Unknown

A small marshmallow is launched straight up in the air with a slingshot.  The function, h, given by the equation h(t) = - 5t² + 20t + 5 describes the height of the marshmallow in meters as a function of, t, in seconds since it was launched.

What is the speed (or velocity) of the marshmallow? (in meters per second)

• 20

• 5

• -5

• Unknown

A small marshmallow is launched straight up in the air with a slingshot.  The function, h, given by the equation h(t) = - 5t²+20t + 5 describes the height of the marshmallow in meters as a function of, t, in seconds since it was launched.

Use DESMOS to determine the maximum height of the marshmallow.

• 5

• 20

• 25

• 50