Quadratic Applications

The height of a water balloon that is launched into the air is given by h(t) = -5t² + 40t + 2. From what height was the balloon released?

• 2 meters

• 5 meters

• 40 meters

• 20 meters

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  
When will the object reach its maximum height?

• 4 ft
• 0 seconds
• 0 ft
• 4 seconds

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
 h = -16t² + 64t + 960.
How many seconds did it take for the ball to reach its maximum height?

• 10 seconds
• 64 seconds
• 960 seconds
• 2 seconds

The height of a baseball is given by the equation h(t) = -16t² + 40t + 18, where h is in feet and t is in seconds. What is the initial height? 

• 18 feet
• 16 feet
• 43 feet
• 40 feet

The height of a baseball is given by the equation h(t) = -16t² + 40t + 18, where h is in feet and t is in seconds. When will the ball reach its maximum height? 

• 18 seconds
• 1.25 seconds
• 2.28 seconds
• 2.89 seconds

The height of a baseball is given by the equation h(t) = -16t² + 40t + 18, where h is in feet and t is in seconds. What is the maximum height? 

• 18 feet
• 43 feet
• 16 feet
• 40 feet

The height of a baseball is given by the equation h(t) = -16t² + 40t + 18, where h is in feet and t is in seconds. When does the ball hit the ground? 

• 18 seconds
• 1.25 seconds
• 2.28 seconds
• 2.89 seconds