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1. |
State the solution of the system of equations graphed below. |
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A. |
(0, 3) |
B. |
(3, -1) |
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C. |
(-1, 3) |
D. |
(3, 1) |
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Hint |
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2. |
Solve the system of equations by graphing. 
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A. |
(2, 6) |
B. |
(-6, 2) |
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C. |
(6, 2) |
D. |
(2, -6) |
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Hint |
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3. |
Use the elimination method to solve the system of equations. 
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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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4. |
What is the solution of the system of inequalities? 
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A. |
region 4 |
B. |
region 1 |
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C. |
region 2 |
D. |
region 3 |
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Hint |
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5. |
Selena has 31 days to complete her quilt for the county fair. The blue squares in the quilt can be sewn at a rate of 4 squares per day, and the white squares at a rate of 7 squares per day. The quilt can have up to 96 squares total. The blue fabric b costs about $0.80 per square and the white fabric w costs about $1.20 per square. Selena wants to keep costs at a minimum. Write an inequality that expresses the total number of squares to be sewn. |
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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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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. |
$4.80 |
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C. |
$1.80 |
D. |
$4.55 |
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Hint |
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7. |
Solve the system of equations. 
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A. |
no solution |
B. |
(1, 1, 2) |
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C. |
(0, -2, 7) |
D. |
infinite number of solutions |
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Hint |
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8. |
Solve the system of equations 3x – 5y = 4
–2x + 4y = 3. |
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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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9. |
Which of the following is not a vertex of the figure formed by  |
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A. |
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B. |
(2, –1) |
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C. |
(6, 4) |
D. |
(0, 2) |
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Hint |
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10. |
What is true about a system of equations in three variables that has 1 solution? |
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A. |
planes have no points in common |
B. |
planes intersect in one line |
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C. |
planes intersect in one point |
D. |
planes intersect in the same plane |
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Hint |
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