Quadratic Applications 9th - 10th Grade Quiz

Quadratic Applications

Assessment

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Heather Bullard

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Mathematics

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9th - 10th Grade

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297 plays

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Medium

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20 questions

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MULTIPLE CHOICE

5 mins • 1 pt

A fountain shoots water in an arc over a lake that can be modeled by the graph of the equation y= -0.4x² + 8x where x is the horizontal distance (in feet) from the fountain base and y is the height (in feet) above the river. How high does the water go?

MULTIPLE CHOICE

5 mins • 1 pt

A raft is dropped from a helicopter 256 feet in the air above the ocean. Its approximate height, h, after t seconds is given by the function h(t) = -16t² + 256. How many seconds did it take the raft to hit the water?

MULTIPLE CHOICE

3 mins • 1 pt

What is the initial (starting) height of an object following this path? h(t) = -16t² +20t + 6

MULTIPLE CHOICE

3 mins • 1 pt

If the graph shows price vs profit, what is the maximum profit?

MULTIPLE CHOICE

3 mins • 1 pt

An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation
s(t) = –16t² + 64t + 80.
What will be the object's maximum height?

MULTIPLE CHOICE

5 mins • 1 pt

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 after jumping is he back on the water?