AnswersDHS Algebra 2 VLinear Programming

Linear Programming — Unit test Answers

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1
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Consider the solution to the system of inequalities below.Which of the following functions could be added to the system without changing the solution set?

Question illustration
A
y > 2
B
y < 3
C
y < 2
D
y = 3
2
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Which statement describes the solution to the system of equations?

Question illustration
A
The system has exactly one solution.
B
The system has exactly two solutions.
C
The system has no solutions.
D
The system has infinitely many solutions.
3

A deli is offering two specials. The roast beef special gives a profit of $2.30 per sandwich, and the turkey special gives a profit of $3.10 per sandwich. The roast beef special uses two slices of bread and three slices of cheese. The turkey special uses two slices of bread and four slices of cheese. The deli has 120 slices of bread and 160 slices of cheese available for the specials. The deli wants to maximize its profit selling specials. Let x represent the number of roast beef specials and y represent the number of turkey specials. What are the constraints for the problem?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
4

Which equation can pair with x – y = –2 to create a consistent and dependent system?

A
6x + 2y = 15
B
–3x + 3y = 6
C
–8x – 3y = 2
D
4x – 4y = 6
5

Which ordered pair (c, d) is the solution to the given system of linear equations?

Question illustration
A
(–1, 6)
B
(–1, 7)
C
(6, –1)
D
(7, 10)
6

What is the maximum value of P = 24x + 30y, given the constraints on x and y listed below?

Question illustration
A
120
B
132
C
138
D
150
7

A small fair charges an admission fee for children and adults. The cost for admission is $3 per adult and $2 per child. On a certain day, total admission fees were $900, and 350 people attended the fair. How many children attended the fair that day?

A
80 children
B
150 children
C
200 children
D
320 children
8

Which graph shows the solution to the following system of inequalities?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
9

Solve the system of equations below by graphing. What is the solution rounded to the nearest hundredth?

Question illustration
A
(23.19, –11.34)
B
(23.19, 11.34)
C
(33.87, –6.45)
D
(33.87, 6.45)
10

What is the solution to the system of equations?

Question illustration
A
(11, 1)
B
(1, 11)
C
(–1, 11)
D
(11, –1)
11

Arianna is buying plants for her garden. She buys 15 flowering plants for $96. Pink flowering plants sell for $8, and purple flowering plants sell for $5. How many pink flowering plants did Arianna buy?

A
6 pink flowering plants
B
7 pink flowering plants
C
8 pink flowering plants
D
9 pink flowering plants
12

Which ordered pair (a, b) is the solution to the following system of equations?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
13

Solve the system of equations below by graphing. What is the solution rounded to the nearest tenth?

Question illustration
A
(–1.1, 3.2)
B
(0.2, 2.8)
C
(0.7, –4.2)
D
(2.7, 0.1)
14

Which statement correctly explains how Andre could find the solution to the following system of linear equations using elimination?

Question illustration
A
Multiply the first equation by –7 and the second equation by 8, and then subtract.
B
Multiply the first equation by -7 and the second equation by 8, and then add.
C
Multiply the first equation by 2 and the second equation by 9, and then add.
D
Multiply the first equation by –2 and the second equation by 9, and then subtract.
15

A small organic food store makes two types of fruit smoothies: tropical and sport. Each tropical smoothie uses 9 oz of orange juice and 6 oz of milk. Each sport smoothie uses 3 oz of orange juice and 3 oz of milk. The store buys the orange juice in a 210-oz container and milk in a 150-oz container. The store sells the tropical smoothies for $4 and sells the sport smoothie for $3. What is the maximum in smoothie sales the store can make from 1 container each of orange juice and milk?

A
$100
B
$110
C
$150
D
$280
16

Which statement about the following system of inequalities is true?

Question illustration
A
There is no solution because the shading does not overlap.
B
There is no solution because the graphs do not intersect.
C
The solution contains points in four quadrants of the coordinate plane.
D
The solution is equal to the solution to .
Option D
17

The constraints of a problem are listed below. What are the vertices of the feasible region?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
18

Which region represents the solution to the given system of inequalities?

Question illustration
A
A
B
B
C
C
D
D
19

A charity bingo game costs $2 per round and has a $13 entry fee for an adult. It costs $3 per round and a $10 entry fee for a child. For how many rounds of bingo are the costs the same for an adult and a child?

A
2
B
3
C
4
D
5
20

Which statement describes the system of equations?

Question illustration
A
It has one solution (4, –4).
B
It has one solution (8, –9).
C
The system has no solution.
D
The system has infinitely solutions.

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