Real World Quadratic

• 3 seconds

• 46 seconds

• 5 seconds

• 10 seconds

• 24 feet

• 9 feet

• 46 feet

• 34 feet

• Between 4 and 5 seconds

• Between 45 and 50 seconds

• Between 6 and 7 seconds

• Between 9 and 10 seconds

• 3 seconds

• 4 seconds

• 3.5 seconds

• 2 seconds

• 14 feet

• 17 feet

• 19 feet

• 22 feet

• Between 1 and 2 seconds

• Between 2 and 3 seconds

• Between 3 and 4 seconds

• Between 4 and 5 seconds

A ball is thrown into the air from the edge of a 48-foot-high cliff so that it eventually lands on the ground. The graph below shows the height, y, of the ball from the ground after x seconds. How many seconds does it take for the ball to hit the ground?

• 5.5

• 0

• 2.5

• cannot be determined

• 6 ft

• 18.583 ft

• 8 ft

• 56 ft

Mrs. Martone's 7th grade science class built and launched rockets. 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. How long did it take the rocket to reach its maximum height?

• 1 second

• 5 seconds

• 7 seconds

• 11 seconds

Jason jumped off of a cliff into the ocean in Acapulco while vacationing with some friends. His height as a function of time could be modeled by the function h(t) = –16t² + 16t + 480, where t is the time in seconds and h is the height in feet. How long does it take Jason to hit the water?

• -16 seconds

• -6 seconds

• 0 seconds

• 5 seconds