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1. |
Use elimination to solve the system of equations.
-x + 2y = 18
x + 8y = -38 |
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A. |
(-5, -1) |
B. |
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C. |
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D. |
(-22, -2) |
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Hint |
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2. |
Simplify  Assume the denominator is not equal to zero. |
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A. |
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B. |
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C. |
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D. |
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3. |
Use the quadratic formula to solve 6x2 - x - 1 = 0. |
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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. |
Find  . |
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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. |
Express  in simplest form. |
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A. |
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B. |
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D. |
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6. |
Solve  . |
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A. |
-2 or  |
B. |
-2 |
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C. |
5 |
D. |
-2 or 7 |
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Hint |
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7. |
Simplify 2x2 + 5x2 + 7x. |
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A. |
14x2 |
B. |
14x |
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C. |
7x2 + 7x |
D. |
2x2 + 12x |
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Hint |
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8. |
Solve 2z2 + z - 4 = 0 by completing the square. |
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A. |
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B. |
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C. |
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D. |
-2, 1 |
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Hint |
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9. |
Determine the product (2x + 1)(x - 4). |
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A. |
2x2 - 2x - 4 |
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B. |
2x2 - 7x - 4 |
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C. |
2x2 + 6x - 4 |
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D. |
2x2 + 8x - 4 |
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Hint |
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10. |
Find the equation that has direct variation. |
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A. |
y = 0.8x + 9 |
B. |
y = –3x – 1 |
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C. |
y = 5x + 1.3 |
D. |
y = 4x |
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Hint |
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11. |
Which line is parallel to the line listed below?
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A. |
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B. |
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C. |
y = 2x - 5 |
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D. |
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Hint |
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12. |
Describe how the graph of y = (x + 1)2 differs from the graph of y = x2. |
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A. |
the graph of y = (x + 1)2 moved 1 unit to the left |
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B. |
the graph of y = (x + 1)2 moved up 1 unit |
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C. |
the graph of y = (x + 1) 2 moved down 1 unit |
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D. |
the graph of y = (x+1)2 moved 1 unit to the right |
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Hint |
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13. |
What is the new equation if the graph y = 2x3 – 6x2 is moved down 1 unit? |
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A. |
y = 2x3 – 6x2 – 1 |
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B. |
y = 2x3 – 5x2 |
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C. |
y = x3 – 6x2 |
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D. |
y = 2x3 – 6x2 + 1 |
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Hint |
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14. |
Scale the figure below by . |
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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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15. |
Find the quotient. Simplify |
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A. |
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B. |
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D. |
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Hint |
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16. |
Find the solutions of the equation.(x – 2) 2 – 1 = 3 |
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A. |
x = 4 and x = –4 |
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B. |
x = –4 and x = –4 |
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C. |
x = 0 and x = –4 |
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D. |
x = 0 and x = 4 |
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Hint |
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17. |
Ben, Jenny, Angela, and Craig all ran in the 1-mile cross-country race. How many ways can the four people finish the race? |
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A. |
20 |
B. |
24 |
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C. |
16 |
D. |
8 |
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Hint |
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18. |
Ben, Jenny, Angela, and Craig all ran in the 1-mile cross-country race. What is the probability that Jenny came in first? |
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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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19. |
Suppose you spin two spinners, each numbered 1 to 4, and multiply the two outcomes. What is the probability that the product will be even? |
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A. |
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B. |
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20. |
The following map shows the normal peak times for fall foliage. Which state contains trees that change color from early October through early November? |
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A. |
Washington |
B. |
Maine |
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C. |
North Carolina |
D. |
Wisconsin |
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Hint |
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