Quadratic Equations in Context

You and some friends went to a haunted house on Halloween. The alien scared one friend so much that she jumped into the air! The equation

h = -4t² + 4t

models her jump where h is her jump's height in feet t seconds after the alien scares her. What was the maximum height?

• .5 feet

• 1 foot

• 1.5 feet

• 2 feet

A lizard is jumping across the water in search of food. The equation h = -12t^2 + 6t models the lizard's height in feet above the water t seconds after he jumps. How long after jumping is he back on the water?

A lizard is jumping across the water in search of food. The equation

h = -12t² + 6t

models the lizard's height in feet above the water t seconds after he jumps. How long did it take the lizard to reach it's max height?

• .25 seconds

• .5 seconds

• .75 seconds

• 1 second

A lizard is jumping across the water in search of food. The equation

h = -12t² + 6t

models the lizard's height in feet above the water t seconds after he jumps. What was the lizard's maximum height?

• .25 feet

• .5 feet

• .75 feet

• 1 foot

Your nephew is standing on his deck. He tosses his toy up into the air. The equation h = -2t² + 7t + 4 models the toy's height, h, from the ground at t seconds after he threw it. How high is the toy after 1 second?

• 4 feet

• 1.75 feet

• 10.125 feet

• 9 feet

Your nephew is standing on his deck. He tosses his toy up into the air. The equation h = -2t² + 7t + 4 models the toy's height, h, from the ground at t seconds after he threw it. How high is the deck?

• 4 feet

• 1.75 feet

• 10.125 feet

• 9 feet

Your nephew is standing on his deck. He tosses his toy up into the air. The equation

h = -2t² + 7t + 4

models the toy's height, h, from the ground at t seconds after he threw it. How long to reach max height?

• 4 sec

• 1.75 sec

• 10.125 sec

• 9 sec

Your nephew is standing on his deck. He tosses his toy up into the air. The equation h = -2t² + 7t + 4 models the toy's height, h, from the ground at t seconds after he threw it. What was max height?

• 4 feet

• 1.75 feet

• 10.125 feet

• 9 feet

Your nephew is standing on his deck. He tosses his toy up into the air. The equation

h = -2t² + 7t + 4

models the toy's height, h, from the ground at t seconds after he threw it. How long did it take for the toy to hit the ground?

• 4 sec

• 1.75 sec

• 10.125 sec

• 9 sec

Fireworks are fired from the roof of building. The equation h = -16t² +84t + 100 models the height, h, of the fireworks at any given time, t. How high do the fireworks get?

• 100 feet

• 2.625 feet

• 210.25 feet

• 6.25 feet