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Real World Quadratic Applications Quiz

Mathematics

8th Grade

CCSS covered

Used 8+ times

Real World Quadratic Applications Quiz
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6 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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The graph below describes a ball that was kicked by Mr. Crawford in a soccer match. Which of the following is a true statement describing the graph of the ball's flight?

The ball was kicked from a height of 500 centimeters and it traveled for 2 seconds before reaching its maximum height.

The ball had a maximum height of 2000 centimeters and it was in the air for a total of 2 seconds before landing on the ground.

The ball was kicked from the ground and it was in the air for 4 seconds.

The ball had a maximum height of 1000 centimeters and it was in the air for 4 seconds.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following describes the graph of the equation y = x2 - 2x -15?

The graph has a maximum point and a y-intercept of (0, -2).

The graph has a minimum point and a y-intercept of (0, -15).

The graph has a minimum point and a y-intercept of (0, -2).

The graph has a maximum point and a y-intercept of (0, -15).

Tags

CCSS.HSF-IF.C.7A

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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Mrs. Johnson built and launched a toy rocket from a balcony that was 10 feet from the ground. The height of the rocket is modeled the equation y = -x2 + 6x + 10, where x represents time in seconds and y represents the height in feet. What is the maximum height that her rocket will reach in its flight?

7.4 feet

10 feet

19 feet

20 feet

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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A frog is sitting on the ground when he is scared by Mr. Bennett's big dog. The movement of the frog is modeled by the equation y = -5x2 + 5x where y is the frog's height in feet at any given time in seconds, x. When is the frog at a height of 0.8 feet?

0.2 seconds

0.5 seconds

1.25 seconds

0 and 1 seconds

0.2 and 0.8 seconds

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

On one of Mr. Gebhardt's visits to the aquarium, he watched a dolphin jump from the water with an initial velocity of 16 feet per second. The equation h = -8t2 + 16t models the dolphin's height in feet at any given time of seconds, t. What is the dolphin's height at 1.5 seconds into its jump?

1 foot

1.5 feet

2 feet

6 feet

8 feet

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Mrs. Prickitt is helping to sell tickets for a talent show. The profit from selling talent show tickets depends on the ticket price. Using past receipts, it is determined that the profit can be modeled by the function: p = 15x2 - 600x + 60, where p is the total profit in dollars and x is the number of tickets sold. What is the minimum number of tickets that need to be sold in order to make a positive profit?

0

20

40

60

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