Real World Quadratic

The graph below shows the height, in feet, over time, in seconds, of a student's rocket. Use the graph to answer the questions below. What was the maximum height the rocket reached?

• 25 feet

• 45 feet

• 65 feet

• 85 feet

• 3 seconds

• 46 seconds

• 5 seconds

• 10 seconds

• 24 feet

• 9 feet

• 46 feet

• 34 feet

• Between 4 and 5 seconds

• Between 5 and 6 seconds

• Between 6 and 7 seconds

• Between 9 and 10 seconds

• 22 meters

• 1.89 seconds

• 2 seconds

• 2 meters

• 18 meters

A ball is thrown vertically into the air. Its height in feet after t seconds is given by the equation h(t) = –5t² + 20t. How many feet into the air will the ball be at 3 seconds?

Mathematical Equivalence

OFF

What is the total daily cost of all the tennis balls produced?

• 500

• 2300

• -2300

• 7700

You jump off a 24 foot high cliff and your fall is modeled by the function:

h(t) = -16t² + 8t + 24

How long would it take you to hit the water?

• 8 seconds

• 1 second

• 1.5 seconds

• 1/4 second