Skip to Content

Build your own quiz

16 questions

Show Answers

See Preview

- 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: $f\left(5\right)=?$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.

$h=-16t^2+64t+960$

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.
$h=-16t^2+64t+960.$ 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.

$h=-16t^2+64t+960$

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?

$\frac{-7\pm\sqrt{\left(7\right)^2-4\left(1\right)\left(-10\right)}}{2\left(1\right)}$

$\frac{7\pm\sqrt{\left(7\right)^2-4\left(1\right)\left(-10\right)}}{2\left(1\right)}$

$\frac{-10\pm\sqrt{\left(-10\right)^2-4\left(1\right)\left(7\right)}}{2\left(1\right)}$

$\frac{10\pm\sqrt{\left(-10\right)^2-4\left(1\right)\left(7\right)}}{2\left(1\right)}$

- Multiple ChoicePlease save your changes before editing any questions.Solve by taking square roots:

5b^{2}- 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 = -16t

^{2}+ 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 = -16t

^{2}+ 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) = -16t
^{2}+ 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 = -16t^{2}+ 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 = -16t^{2}+ 64t + 960.

When did the ball hit the ground?10 seconds2 seconds5 seconds7 seconds