Applications of Quadratics

1.

Multiple Choice

10 mins

1 pt

An object flies through the air and follows a parabolic path. Which of these typically represents the x-axis?

time

height from the ground

2.

Multiple Choice

10 mins

1 pt

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

Hint: Key into Desmos!

-16 feet

0 feet

20 feet

6 feet

3.

Multiple Choice

10 mins

1 pt

An object flies through the air and follows a parabolic path. What does the y-axis represent?

time

height from the ground

horizontal distance

money

4.

Multiple Choice

10 mins

1 pt

The graph of a quadratic function is called a

Parabola

Vertex

Axis of Symmetry

Vertex Form

5.

Multiple Choice

10 mins

1 pt

The parabola shows the trajectory of a tennis ball that was hit with a tennis racket. What is the starting height of the tennis ball? (Click the picture to enlarge it)

3 feet - y-intercept

12 feet - vertex

1.5 seconds - vertex

3 seconds - x-intercept

6.

Multiple Choice

10 mins

1 pt

The parabola shows the trajectory of a tennis ball that was hit with a tennis racket. How long di it take for the tennis ball to hit the ground? (Click the picture to enlarge it)

3 feet

12 feet

1.5 seconds

3 seconds

7.

Multiple Choice

10 mins

1 pt

What is the highest point over the water?

8 meters

1 meter

1 second

8 seconds

8.

Multiple Choice

10 mins

1 pt

How long did it take to reach highest point over the water?

8 meters

1 meter

1 second

8 seconds

9.

Multiple Choice

10 mins

1 pt

If the a value is positive, which direction does the graph open?

up

down

left

right

10.

Multiple Choice

10 mins

1 pt

If the a value is negative, which direction does the parabola open?

up

down

left

right

11.

Multiple Choice

10 mins

1 pt

Which answer choice describes y = -3x² +7x - 2 accurately?

opens up with a maximum

opens up with a minimum

opens down with a maximum

opens down with a minimum

12.

Multiple Choice

10 mins

1 pt

Does this graph have a maximum or minimum?

Minimum

Maximum

13.

Multiple Choice

10 mins

1 pt

What is the green dot on the parabola called?

maximum

minumum

roots

zeros

14.

Multiple Choice

10 mins

1 pt

An object in launched directly upward and the height of the object is represented by the equation s(t) = –16t² + 64t + 80. What is the maximum height?

144 feet

80 feet

16 feet

-16 feet

15.

Multiple Choice

10 mins

1 pt

An object is launched upward and the height of the object is represented by the equation s(t) = –16t² + 64t + 80. How long does it take for the object to hit the ground after it has been launched?

2 seconds

5 seconds

80 seconds

0 seconds

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