Projectile Motion Quadratics

A dolphin jumps from the water at at initial velocity of 16 feet per second. The equation h = -16t² + 80t models the dolphin's height at any given time, t. What is the maximum height the dolphin jumps?

• 1 foot

• 5 feet

• 96 feet

• 100 feet

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 was the rocket in the air?

• 1 second

• 7 seconds

• 14 seconds

• 5.61 seconds

• 1.12 seconds

• 5.125 seconds

• 11 feet

• 1.12 seconds

• 5.61 seconds

• 6.5 feet

• 5.125 seconds

• 36 feet

• 1.12 seconds

• 10.06 feet

• 5.61 seconds

• 10.06 ft

• 1.12 seconds

• 5.61 seconds

• 5.125 seconds

• 10.06 feet

• 201 feet

• 5.61 seconds

• 36 feet

• 201 feet

• 10.06 feet

• 36 feet

• 81 feet

• 201 feet

• 10.06 feet

• 36 feet

• 81 feet

• 39 feet

• 11 feet

• 6.5 feet

• 10.06 feet