Real World Quadratic

If a toy rocket is launched vertically upward from ground level with an initial velocity of 128 feet per second, then its height, h, after t seconds is given by the equation h(t) = 16t² - 128t. How long does it take the rocket to hit the ground?

• 8 seconds

• 16 seconds

• -16 seconds

• -8 seconds

At what time did the diver reach their maximum height?

• 3 seconds

• 0 seconds

• 6 seconds

• 8 seconds

What is the maximum height reached by the rocket?

• 118 meters

• 150 meters

• 80 meters

• 5 meters

At what time was the rocket at 40 meters high?

• 1 and 9 seconds

• 3 and 7 seconds

• 0 and 10 seconds

• 5 secoonds

What was the maximum height reached by the diver?

• 23 feet

• 14 feet

• 10 feet

• 53 feet

How long was the diver in the air for?

• 18 seconds

• 8 seconds

• 0 seconds

• 3 seconds

At 2 seconds how high was the diver?

• 2 feet

• 22 feet

• 14 feet

• 8 feet

A diver is standing on a platform above the pool. He jumps form the platform with an initial upward velocity of 8 ft/s. The following functions reprsents the divers height (in feet) where t is time in seconds: h(t) = −16 t² + 8t + 24How high is the platform?

• .25 ft

• 24 ft

• 25 ft

• 8 ft

The function
f(t) = -5t² + 20t + 60 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground? 

• 4 seconds

• -2 seconds

• 6 seconds

• 9 seconds

What algebraic term are you solving for if the word problem is: The equation for leaping off a cliff is
h(t) = -16t² + 8t +24.  How long will it take for you to hit the water?

• Roots (Solutions)

• Axis of Symmetry

• Vertex

• y-intercept