
Quadratic Applications Warmup
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How fast would you reach the water if you jump of a cliff using the formula: h(t) = -16t2 + 8t + 24?
8
1
1.5
1/4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The function
f(t) = -5t2+20t + 60
models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground?
4 seconds
-2 seconds
6 seconds
9 seconds
3.
MULTIPLE CHOICE QUESTION
1 min • 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?
2 ft
80 ft
144 ft
64 ft
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A diver is standing on a platform above the pool. He jumps form the platform with an initi8al upward velocity of 8 ft/s. Use the formula h t = −16 t2 + 8t + 24, where h is his height above the water, t is the time, v is his starting upward velocity, and s is his starting height. How high is the platform?
.25 ft
24 ft
25 ft
8 ft
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The function f(t) = -5t2+20t + 60 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground?
4 seconds
-2 seconds
6 seconds
9 seconds
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the vertex of y=x2+4x+3?
(2,1)
(-2,1)
(0,0)
(-2,-1)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If each mark on the x-axis represents one second, when did the object reach the ground?
2.5 seconds
6 seconds
5.5 seconds
5 seconds
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