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1. |
Determine which matrix has a determinant. |
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A. |
 |
B. |
[1 -4 -8] |
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C. |
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D. |
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Hint |
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2. |
Three out of the four equations listed below are equations of lines that are parallel to each other. Which equation does not have a graph that is a line parallel to the other three? |
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A. |
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B. |
8y = - 6x |
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C. |
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D. |
3x + 4y = -16 |
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Hint |
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3. |
Use substitution to solve the system of equations given below.
y = 2x
5x - y = -24 |
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A. |
(-8, -16) |
B. |
no solution |
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C. |
(-4, -8) |
D. |
infinitely many solutions |
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Hint |
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4. |
Use substitution to solve the system of equations given below.
8x - 4y = 16
2x - y = 4 |
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A. |
(0, -4) |
B. |
(2, 0) |
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C. |
infinitely many solutions |
D. |
no solution |
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Hint |
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5. |
The sum of two numbers is 36. Twice the first number minus the second is 6. Find the numbers. |
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A. |
(10, 26) |
B. |
(14, 22) |
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C. |
(30, 6) |
D. |
(42, 6) |
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Hint |
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6. |
Use elimination to solve the system of equations given below.
3x + 4y = -12
x - y = 10 |
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A. |
(28, 18) |
B. |
(4, -6) |
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C. |
(52, 42) |
D. |
(-4, -14) |
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Hint |
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7. |
Which system of inequalities is graphed below? |
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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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8. |
Which system of equations is shown in the graph? |
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A. |
x - 3y = -13
x + y = 1 |
B. |
2x - 6y = 1
7x + 4y = -2 |
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C. |
3x - y = 1
x + 2y = 12 |
D. |
2x + y = 9
x - y = 6 |
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Hint |
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9. |
Use the graph below to determine if the given system of equations has one solution, no solution, or infinitely many solutions. If the system has one solution, name it.
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A. |
infinitely many solutions |
B. |
one solution at  |
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C. |
no solution |
D. |
one solution at (-6, 0) |
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Hint |
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10. |
Write the slope-intercept form of an equation for a line perpendicular to the graph of y = -3x + 5 and passes through the x-intercept of that line. |
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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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11. |
Solve the system –2x – 4y = 7, 3x + 5y = 9. |
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A. |
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B. |
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C. |
(71, –39) |
D. |
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Hint |
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12. |
Which point is in the solution set of  and  |
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A. |
(-4, 6) |
B. |
(2, 1) |
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C. |
(3, 4) |
D. |
(-1, -5) |
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Hint |
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13. |
A geometrical representation of a map is called a ______?______. |
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A. |
pattern |
B. |
chart |
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C. |
directed graph |
D. |
coordinate plane |
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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. |
Worcester |
B. |
Providence |
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C. |
Boston |
D. |
Lowell |
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Hint |
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