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Biblioteka

NBHS Unit 3 Test

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Posljednje ažuriranje over 5 years ago
24 questions

Answer each question showing all your work. Watch your time so you are not stuck in the middle of a question when it is submitted.

In submitting this quiz you are agreeing that you have completed this in a honest manner and did not seek and/or help others in its completion.

For questions 1 - 9 answer the questions using the graph and given equations.

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Pitanje 1
1.

Match each equation with line A, B, or C from the graph: (1 point each)

Pitanje 2
2.

Find the missing coordinate for each equation in the table below. (3 points)

Pitanje 3
3.

Find the missing coordinate for each equation in the table below. (3 points)

Pitanje 4
4.

Find the missing coordinate for each equation in the table below. (3 points)

Pitanje 5
5.

Looking at your previous answers write the coordinates (x, y) of the point that is on all three lines. (1 point)

Pitanje 6
6.

Looking at your previous answers what are the slopes of each line? A: _______ B: ________ C:_________

Pitanje 7
7.

Looking at your previous answers what are the y-intercepts of each line? A: _______ B: ________ C:_________

Pitanje 8
8.

What is the slope of a line parallel to line A.

Pitanje 9
9.

What is the slope of a line perpendicular to line B.

Pitanje 10
10.

Given the points (2, 4) and (-4, -2), write the equation in slope-intercept form. (4 pts.)

Pitanje 11
11.

The function y = 14x + 20 represents the amount of money, y (in dollars), Josh charges to landscape a lawn

in x hours.

a.) Identify the independent and dependent variables. (2 pts.)

Pitanje 12
12.

The function y = 14x + 20 represents the amount of money, y (in dollars), Josh charges to landscape a lawn

in x hours.

b.) Josh can take 1, 2 or 3 hours to landscape a lawn. Calculate the range of the function and identify

the domain and range. (2 pts.)

Pitanje 13
13.

The function y = 14x + 20 represents the amount of money, y (in dollars), Josh charges to landscape a lawn

in x hours.

c.) If it took Josh 2.5 hours to Landscape Mr. Rivera’s lawn, how much will Mr. Rivera pay Josh to do

the job? (2 pts.)

Pitanje 14
14.

The NBHS Music Department is selling cookies to raise money for their trip to Disney at the end of the

year. The Borinquen Bakery charges the department $160 for the cookies, including the cost for

delivery. The department decides to sell the cookies for $2.00 each. Let x represent the number of

cookies sold, and y represent the net profit.

a.) Identify the slope (rate of change). (1 point)

Pitanje 15
15.

The NBHS Music Department is selling cookies to raise money for their trip to Disney at the end of the

year. The Borinquen Bakery charges the department $160 for the cookies, including the cost for

delivery. The department decides to sell the cookies for $2.00 each. Let x represent the number of

cookies sold, and y represent the net profit.

b.) Explain the real-world meaning of the slope. (1 point)

Pitanje 16
16.

The NBHS Music Department is selling cookies to raise money for their trip to Disney at the end of the

year. The Borinquen Bakery charges the department $160 for the cookies, including the cost for

delivery. The department decides to sell the cookies for $2.00 each. Let x represent the number of

cookies sold, and y represent the net profit.

c.) What is the y-intercept? (1 point)

Pitanje 17
17.

The NBHS Music Department is selling cookies to raise money for their trip to Disney at the end of the

year. The Borinquen Bakery charges the department $160 for the cookies, including the cost for

delivery. The department decides to sell the cookies for $2.00 each. Let x represent the number of

cookies sold, and y represent the net profit.

d.) Explain the real-world meaning of the y-intercept. (1 point)

Pitanje 18
18.

The NBHS Music Department is selling cookies to raise money for their trip to Disney at the end of the

year. The Borinquen Bakery charges the department $160 for the cookies, including the cost for

delivery. The department decides to sell the cookies for $2.00 each. Let x represent the number of

cookies sold, and y represent the net profit.

e.) Write an equation for the situation. (2 points)

Pitanje 19
19.

The NBHS Music Department is selling cookies to raise money for their trip to Disney at the end of the

year. The Borinquen Bakery charges the department $160 for the cookies, including the cost for

delivery. The department decides to sell the cookies for $2.00 each. Let x represent the number of

cookies sold, and y represent the net profit.

f.) When will the class break-even (neither make nor lose money). Explain how you arrived at your answer.

(1 point for substitution, 2 points for solving)

Pitanje 20
20.

The NBHS Music Department is selling cookies to raise money for their trip to Disney at the end of the

year. The Borinquen Bakery charges the department $160 for the cookies, including the cost for

delivery. The department decides to sell the cookies for $2.00 each. Let x represent the number of

cookies sold, and y represent the net profit.

g.) If the class sells 500 cookies, what will the profit be? Show your work. (1 point for substitution, 2 points

for solving)

Pitanje 21
21.

To buy a game at Gamestop Online it cost $50 a game and the cost for shipping is $15 no matter how many

games you buy.

a.) Write an equation in slope-intercept form to represent the situation. (2 pts.)

Pitanje 22
22.

To buy a game at Gamestop Online it cost $50 a game and the cost for shipping is $15 no matter how many

games you buy.

b.) What does the slope represent in the problem? (2 pts.)

Pitanje 23
23.

To buy a game at Gamestop Online it cost $50 a game and the cost for shipping is $15 no matter how many

games you buy.

c.) Find the cost for buying 1, 2 and 5 games, fill in the table below. (1 point each)

Pitanje 24
24.

To buy a game at Gamestop Online it cost $50 a game and the cost for shipping is $15 no matter how many

games you buy.

d.) If you spend $215 at Gamestop Online, how many games did you buy? (2 pts.)