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Mathematics
9th -
University
Projectile Motion & Mixed Review Quadratics
16 questions
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- Multiple ChoicePlease save your changes before editing any questions.
The height of an object thrown into the air can be modeled by the formula h(t) = -16t2 + 70t + 95, where h(t) is in feet after t seconds.
What is the height of the object after 5 seconds?
Hint:95 feet
45 feet
70 feet
171.56 feet
- Multiple ChoicePlease save your changes before editing any questions.
A ball is thrown into the air with an upward velocity. Its height, h, after t seconds is given by the function below.
How many seconds did it take for the ball to reach its maximum height?
Hint: look at the vertex and remember that x=seconds and y=height.10 seconds
64 seconds
960 seconds
2 seconds
- Multiple ChoicePlease save your changes before editing any questions.
A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
When did the ball hit the ground?
Hint: when the height (h) = 0 OR the x-intercept10 seconds
2 seconds
5 seconds
7 seconds
- Multiple ChoicePlease save your changes before editing any questions.
A ball is thrown into the air with an upward velocity. Its height, h, after t seconds is given by the function below.
How many seconds did it take for the ball to reach its maximum height?
Hint: look at the vertex and remember that x=seconds and y=height.1024 meters
64 meters
960 meters
2 meters
- Multiple ChoicePlease save your changes before editing any questions.
Must make Equation =0, then quadratic formula or factor
-3
0.4
2.5
4
- Multiple ChoicePlease save your changes before editing any questions.
Hint: Make equation =0, then type into Desmos and look for x-intercepts.
-0.5
0.5
2
-2
- Multiple ChoicePlease save your changes before editing any questions.
Hint: make equation =0, then put equation into Demos.
-4
2
-1
3
- Multiple ChoicePlease save your changes before editing any questions.
1
7
-4
9
- Multiple ChoicePlease save your changes before editing any questions.
which of the following show the quadratic formula being used properly?
- Multiple ChoicePlease save your changes before editing any questions.Solve by taking square roots:
5b2 - 4 = 41b = 9, b = -9b = 3, b = -3b = 8, b = -8no solution - Multiple ChoicePlease save your changes before editing any questions.
What is the equation that matches the graph?
- Multiple ChoicePlease save your changes before editing any questions.
The pathway of an arrow can be represented by the equation h = -16t2 + 80t + 25, where h is the height in feet and t is the time in seconds. What is the maximum height?
h = 125 feet
h = 80 feet
h = 95 feet
h = 140 feet
- Multiple ChoicePlease save your changes before editing any questions.
A rock is dropped from a bridge 320 feet above a river. The pathway that the rock takes can be modeled by the equation h = -16t2 + 320. How long will it take the rock to reach the river (ground)?
4.5 seconds
2.5 seconds
3.8 seconds
3.5 seconds
- Multiple ChoicePlease save your changes before editing any questions.The height of an object thrown into the air can be modeled by the formula h(t) = -16t2 + 70t + 95, where h(t) is in feet after t seconds.
What is the height of the object after 5 seconds?95 feet45 feet70 feet171.56 feet - Multiple ChoicePlease save your changes before editing any questions.A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
h = -16t2 + 64t + 960.
How many seconds did it take for the ball to reach its maximum height?10 seconds64 seconds960 seconds2 seconds - Multiple ChoicePlease save your changes before editing any questions.A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
h = -16t2 + 64t + 960.
When did the ball hit the ground?10 seconds2 seconds5 seconds7 seconds