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1. |
Express 0.0000421 in scientific notation. |
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A. |
4.21 × 10-4 |
B. |
4.21 × 10-9 |
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C. |
4.21 × 10-5 |
D. |
4.21 × 10-6 |
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Hint |
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2. |
Select the figure that has no lines of symmetry. |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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3. |
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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Hint |
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4. |
Find (3a + 4b)2 |
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A. |
3a2 + 24ab + 4b2 |
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B. |
9a2 + 24ab + 16b2 |
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C. |
9a2 + 12ab + 16b2 |
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D. |
9a2 + 16b2 |
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Hint |
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5. |
Factor x2 – 16. |
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A. |
(x + 2)(x – 8) |
B. |
(x + 4)(x – 4) |
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C. |
(x + 4)(x + 4) |
D. |
(x – 4)(x – 4) |
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Hint |
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6. |
Find the coordinates of the vertex of the graph of the equation
y = -3x2 - 12x - 5. |
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A. |
(2, -41) |
B. |
(1, -20) |
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C. |
(-4, -5) |
D. |
(-2, 7) |
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Hint |
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7. |
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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8. |
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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9. |
Find the difference:  |
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A. |
3x2 - 7x - 5 |
B. |
-3x2 - 7x + 1 |
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C. |
-3x2 - 7x - 5 |
D. |
-3x2 + x - 5 |
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Hint |
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10. |
Solve a2 - a - 20 = 0 by completing the square. |
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A. |
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B. |
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C. |
-5, 4 |
D. |
-4, 5 |
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Hint |
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11. |
Find the graph of y = x2 + 1. |
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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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12. |
How many diagonals are connected to each vertex for a 25-sided polygon? |
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A. |
25 |
B. |
21 |
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C. |
22 |
D. |
20 |
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Hint |
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13. |
What is the reciprocal of –20? Evaluate it in decimal form. |
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A. |
–0.20 |
B. |
–0.50 |
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C. |
–0.02 |
D. |
–0.05 |
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Hint |
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14. |
What type of relationship does the equation have if its second differences are constant? |
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A. |
cubic |
B. |
linear |
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C. |
constant |
D. |
quadratic |
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Hint |
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15. |
Identify the growth factor in the equation p = 682,363 × 1.08n where p is the population and n is the number of years after 2001. |
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A. |
p |
B. |
682,363 |
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C. |
1.08 |
D. |
n |
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Hint |
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16. |
How many solutions can a graph of y = ax2 + bx + c have? |
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A. |
all answers are correct |
B. |
two |
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C. |
one |
D. |
zero |
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Hint |
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17. |
If a is the original figure, which figure is a reflection? |
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 |
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A. |
b |
B. |
c |
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C. |
d |
D. |
e |
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Hint |
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18. |
Use the projection method to scale this polygon by a factor of 2. |
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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. |
If you want to scale a segment by a factor of 8, how long will the new segment be? |
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A. |
8 times its original size |
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B. |
64 times its original size |
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C. |
 of its original size |
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D. |
80% of its original size |
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Hint |
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20. |
How many solutions does the equation have?x2 – 6x + 8 = 2x – 3 |
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A. |
2 |
B. |
0 |
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C. |
3 |
D. |
1 |
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Hint |
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