AnswersFinancial MathLinear-Quadratic Systems

Linear-Quadratic Systems — Quiz Answers

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21
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How many units need to be sold to maximize the company's revenue?

A
4 comma 000 units
B
3 comma 000 units
C
2 comma 000 units
D
6 comma 000 units
22
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Which graph represents the system of equations? y=x^2−2⁢x+1 y=x+5

A
Image with description A coordinate plane with a line and a curved line. The x-axis is labeled from negative 3 to 5 and the y-axis is labeled from 0 to 50. Points on the line are (negative 1, 0), (0, 5), (3, 20). Points on the curved line are (negative 1, 0), (2, 9), (4, 25).
B
Image with description A coordinate plane with a line and a curved line. The x-axis is labeled from negative 3 to 5 and the y-axis is labeled from 0 to 50. Points on the line are (negative 1, 0), (3, 30). Points on the curved line are (negative 1, 5), (0, 0), (4, 30).
C
Image with description A coordinate plane with a line and a curved line. The x-axis is labeled from negative 3 to 5 and the y-axis is labeled from 0 to 50. Points on the line are (0, 5), (5, 10). Points on the curved line are (negative 1, 0), (3, 15), (5, 40).
D
Image with description A coordinate plane with a line and a curved line. The x-axis is labeled from negative 3 to 5 and the y-axis is labeled from 0 to 50. Points on the line are (negative 1, 5), (4, 9), (5, 10). Points on the curved line are (negative 1, 5), (1, 0), (4, 9).
25

What are the break-even points?

A
(0, 0) and (34, 204)
B
(2, 76) and (20, 400)
C
(2, 76) and (34, 204)
D
(0, 0) and (20, 400)
27

A software company has fixed monthly expenses of $⁢10,000 and a variable cost of $⁢100 per software license sold. Due to market capacity, revenue is $⁢0 when 0 licenses are sold and $⁢0 when 200 licenses are sold. The maximum revenue occurs when 100 licenses are sold. Which system of equations represents the linear cost function C⁡(x) and the quadratic revenue function R⁡(x) , where x represents the number of software licenses sold?

A
cap c times x is equal to 10 comma 000 x plus 100 cap r times x is equal to negative x times open paren x minus 200 close paren
B
cap c times x is equal to 10 comma 000 x plus 100 cap r times x is equal to negative x times open paren x minus 100 close paren
C
cap c times x is equal to 100 x plus 10 comma 000 cap r times x is equal to negative x times open paren x minus 100 close paren
D
cap c times x is equal to 100 x plus 10 comma 000 cap r times x is equal to negative x times open paren x minus 200 close paren
28

What are the break-even points?

A
(0, 0) and (30, 900)
B
(9, 459) and (45, 675)
C
(9, 459) and (30, 900)
D
(0, 0) and (45, 675)
29

How many units need to be sold to maximize the store's revenue?

A
12 comma 000 units
B
4 comma 000 units
C
16 comma 000 units
D
6 comma 000 units
31

A farmer sells organic apples at a local market. The fixed costs are $⁢800 per season, and the variable cost is $⁢1 per kilogram of apples sold. The revenue is $⁢0 when 0 kg or 160 kg of apples are sold due to market limitations. The maximum revenue occurs when 80 kg of apples are sold. Which system of equations represents the linear cost function C⁡(x) and the quadratic revenue function R⁡(x) , where x represents the kilograms of apples sold?

A
cap c times x is equal to 800 x plus 1 cap r times x is equal to negative x times open paren x minus 80 close paren
B
cap c times x is equal to x plus 800 cap r times x is equal to negative x times open paren x minus 160 close paren
C
cap c times x is equal to x plus 800 cap r times x is equal to negative x times open paren x minus 80 close paren
D
cap c times x is equal to 800 x plus 1 cap r times x is equal to negative x times open paren x minus 160 close paren
36

A farmer sells organic apples at a local market. The fixed costs are $⁢800 per season, and the variable cost is $⁢1 per kilogram of apples sold. The revenue is $⁢0 when 0 kg or 160 kg of apples are sold due to market limitations. The maximum revenue occurs when 80 kg of apples are sold. Which system of equations represents the linear cost function C⁡(x) and the quadratic revenue function R⁡(x) , where x represents the kilograms of apples sold?

A
cap c times x is equal to 800 x plus 1 cap r times x is equal to negative x times open paren x minus 160 close paren
B
cap c times x is equal to 800 x plus 1 cap r times x is equal to negative x times open paren x minus 80 close paren
C
cap c times x is equal to x plus 800 cap r times x is equal to negative x times open paren x minus 160 close paren
D
cap c times x is equal to x plus 800 cap r times x is equal to negative x times open paren x minus 80 close paren
37

How many units must the restaurant sell to break even?

A
0 or 4 comma 000 units
B
0 or 5 comma 000 units
C
1 comma 000 or 5 comma 000 units
D
2 comma 000 or 4 comma 000 units
39

How many units must the restaurant sell to break even?

A
1 comma 000 or 5 comma 000 units
B
0 or 4 comma 000 units
C
2 comma 000 or 4 comma 000 units
D
0 or 5 comma 000 units

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