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1. |
What is the value of the determinant? |
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 |
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A. |
-8 |
B. |
-3 |
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C. |
-12 |
D. |
12 |
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Hint |
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2. |
Which pair of lines graphed below are parallel? |
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A. |
l and n |
B. |
l and m |
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C. |
k and n |
D. |
k and m |
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Hint |
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3. |
Graph the system of equations to determine whether it has no solution, many solutions, or one solution. If the system has one solution, name it.
3x - 2y = -1
2x + y = 4 |
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A. |
one solution at (2, 1) |
B. |
one solution at (1, 2) |
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C. |
no solution |
D. |
infinitely many solutions |
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Hint |
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4. |
Use substitution to solve the system of equations given below.
 |
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A. |
infinitely many solutions |
B. |
no solution |
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C. |
(-12, -10) |
D. |
(-10, -12) |
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Hint |
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5. |
Use elimination to solve the system of equations.
-x + 2y = 18
x + 8y = -38 |
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A. |
 |
B. |
(-22, -2) |
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C. |
 |
D. |
(-5, -1) |
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Hint |
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6. |
Use elimination to solve the system given below.
5x - 2y = 25
5x + 3y = 5 |
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A. |
(3, -5) |
B. |
 |
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C. |
(4, -5) |
D. |
(13, 20) |
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Hint |
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7. |
Which system of inequalities is graphed below? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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8. |
Which system of equations is shown in the graph? |
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A. |
x - y = -2
2x + y = 8 |
B. |
3x - 2y = 8
x - 3y = -2 |
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C. |
x + 2y = 8
2x - 3y = -2 |
D. |
2x + y = 8
y - 3x = -2 |
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Hint |
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9. |
Line segment  has endpoints A(-6, -3) and B(2, 1). Line segment  has endpoints C(-4, 8) and D(3, -6). Is perpendicular to ? Why? |
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A. |
Yes, the slopes are negative reciprocals. |
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B. |
No, the lines intersect but not at right angles. |
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C. |
No, the lines are parallel. |
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D. |
Yes, the slopes are opposites. |
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Hint |
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10. |
Find the value of the determinant of  |
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A. |
64 |
B. |
–32 |
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C. |
2 |
D. |
6 |
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Hint |
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11. |
Use substitution to solve the system of equations given by y = 2x and 5x + y = 7. |
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A. |
(1, 2) |
B. |
(-2, -5) |
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C. |
(-1, -2) |
D. |
(2, 5) |
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Hint |
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12. |
Use graphing to solve the system of inequalities given by y < x + 1 and  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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13. |
Using the directed graph, what is the fewest number of transfers possible to get from the Fitchburg plant to the Providence plant? |
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A. |
3 |
B. |
1 |
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C. |
2 |
D. |
0 |
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Hint |
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14. |
Which city has exactly two ways in which supplies can be transferred from other cities? |
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A. |
Boston |
B. |
Providence |
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C. |
Worcester |
D. |
Lowell |
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Hint |
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