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1. |
A line of best-fit should not be drawn for which of the following graphs. |
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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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2. |
Simplify (3a4b5c)4. |
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A. |
7a16b20c4 |
B. |
81a16b20c4 |
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C. |
12a8b9c5 |
D. |
3a16b20c4 |
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Hint |
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3. |
Solve 5x2 – 10x = 0. |
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A. |
x = 2 |
B. |
x = 0 or x = 2 |
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C. |
x = 0 |
D. |
x = 0 or x = -2 |
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Hint |
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4. |
Find the difference:  |
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A. |
3x2 - 7x - 5 |
B. |
-3x2 + x - 5 |
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C. |
-3x2 - 7x + 1 |
D. |
-3x2 - 7x - 5 |
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Hint |
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5. |
Simplify  . |
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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. |
Solve 2z2 + z - 4 = 0 by completing the square. |
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A. |
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B. |
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C. |
-2, 1 |
D. |
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Hint |
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7. |
Which characteristic describes a graph that is linear and has direct variation. |
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A. |
The graph does not pass through (0, 0). |
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B. |
Variables x and y are not proportional. |
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C. |
The equation has the form y = mx + b. |
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D. |
The equation has the form y = mx. |
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Hint |
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8. |
What is a conjecture? |
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A. |
an educated guess that has been proved |
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B. |
a ''shot in the dark'' guess that hasn't been proved yet |
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C. |
a ''shot in the dark'' guess that has been proved |
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D. |
an educated guess that hasn't been proved yet |
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Hint |
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9. |
How many counterexamples are needed to prove a conjecture wrong? |
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A. |
4 |
B. |
1 |
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C. |
3 |
D. |
2 |
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Hint |
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10. |
Toby needs to create a rectangular pen for his dog. He decides that the area of the pen will be 100 square feet with its length 2 feet longer than its width. As you find the width of the pen, which solution can be thrown away since the width cannot be negative? |
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A. |
–11.05 |
B. |
–12.32 |
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C. |
–8.32 |
D. |
–9.05 |
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Hint |
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11. |
What angle of rotation does the figure below have? |
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A. |
30° |
B. |
40° |
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C. |
45° |
D. |
35° |
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Hint |
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12. |
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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13. |
What is the scale factor of Figure A to Figure B? |
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A. |
2 |
B. |
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C. |
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D. |
4 |
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Hint |
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14. |
Solve the equation by backtracking. |
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A. |
p = 12 and p = –12 |
B. |
p = 12 |
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C. |
p = –10 |
D. |
p = –12 |
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Hint |
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15. |
Rewrite the expression as a product of two binomials.x2 – x – 56 |
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A. |
(x – 7)(x + 8) |
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B. |
(x – 7)(x – 8) |
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C. |
(x + 7)(x + 8) |
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D. |
(x + 7)(x – 8) |
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Hint |
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16. |
Find the domain of the function.y = –x + 3 |
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A. |
all real numbers except –3 |
B. |
all real numbers except 3 |
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C. |
all real numbers |
D. |
all real numbers except 1 |
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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. |
8 |
B. |
16 |
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C. |
24 |
D. |
20 |
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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 Craig finished ahead of Ben? |
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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 roll two 10-sided dice with faces numbered 1 to 10. How many possible number pairs can you roll? |
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A. |
75 |
B. |
10 |
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C. |
50 |
D. |
100 |
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Hint |
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20. |
In a state lottery held twice per week, players choose 6 numbers from 1 to 54. Find the number of ways the first six numbers can be selected (if order mattered.) |
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A. |
324,000 |
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B. |
54 |
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C. |
25,827,165 |
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D. |
18,595,558,800 |
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Hint |
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