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1. |
The system of equations on the graph shown is |
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A. |
consistent and independent. |
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B. |
inconsistent. |
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C. |
consistent. |
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D. |
consistent and dependent. |
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Hint |
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2. |
What is the first step in solving the system of equations using the elimination method? 

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A. |
Add the equations. |
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B. |
Solve the first equation for x. |
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C. |
Multiply the second equation by 2. |
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D. |
Subtract the second equation from the first equation. |
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Hint |
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3. |
Solve the system of equations by using the elimination method. 

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A. |
(12, -2) |
B. |
(34, -13) |
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C. |
(4, 2) |
D. |
(2, 3) |
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Hint |
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4. |
Choose the graph that shows the solution to the system of inequalities and  |
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A. |
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B. |
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C. |
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D. |
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Hint |
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5. |
Which is not a point at which a maximum or minimum value of a function could occur for the feasible region? |
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A. |
(0, 3) |
B. |
(-3, 6) |
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C. |
(-3, 0) |
D. |
(1, 5) |
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Hint |
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6. |
A baker earns 15¢ profit per glazed doughnut g, and 40¢ profit per jelly doughnut j. If a customer wants to buy no more than a dozen doughnuts and wants to try at least one of each kind, what is the maximum profit the baker can earn? |
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A. |
$3.30 |
B. |
$1.80 |
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C. |
$4.55 |
D. |
$4.80 |
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Hint |
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7. |
Determine which ordered triple is a solution of the system of equations. 


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A. |
(1, -2, 6) |
B. |
(0, 1, -14) |
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C. |
(0, 0, 11) |
D. |
(-1, 2, -16) |
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Hint |
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8. |
The Waxmans just opened a carpet store. Their startup costs were $5000, and their cost of carpet is $8 per square yard. How many square yards of carpet do they need to sell in order to break even if they sell the carpet for $18 per square yard? |
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A. |
192 square yards |
B. |
278 square yards |
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C. |
500 square yards |
D. |
50 square yards |
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Hint |
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9. |
Which of the following is not a vertex of the figure formed by  |
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A. |
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B. |
(6, 4) |
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C. |
(2, –1) |
D. |
(0, 2) |
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Hint |
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10. |
Solve the system 4y – 6x + 8z = 13, 10y – 15x + 20z = 6, y – 5x + 2z = 5. |
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A. |
no solution |
B. |
(-3, 1, 7) |
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C. |
infinite solutions |
D. |
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Hint |
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