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1. |
Express 0.0000421 in scientific notation. |
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A. |
4.21 × 10-6 |
B. |
4.21 × 10-4 |
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C. |
4.21 × 10-5 |
D. |
4.21 × 10-9 |
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Hint |
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2. |
Evaluate (3.2 × 10-5)(5.4 × 109). Express the result in scientific notation. |
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A. |
0.1728 × 106 |
B. |
1.728 × 105 |
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C. |
17.28 × 104 |
D. |
1.728 × 103 |
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Hint |
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3. |
Find (x - 4)2. |
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A. |
x2 + 16 |
B. |
x2 - 8x + 16 |
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C. |
x2 - 4x + 16 |
D. |
x2 - 16 |
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Hint |
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4. |
Rectangle DEFG has vertices D(-4, -1), E(-2, -1), F(-2, -4), and
G(-4, -4). Which graph shows the translation image of the rectangle that is 6 units right and 3 units up? |
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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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5. |
What is the equation of the graph shown? |
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A. |
f(x) = -2x2 + 2x + 1 |
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B. |
f(x) = -2x2 + 2x - 1 |
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C. |
f(x) = 2x2 - 2x + 1 |
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D. |
f(x) = 2x2 + 2x + 1 |
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Hint |
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6. |
Simplify  . |
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A. |
 |
B. |
5x |
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C. |
2x |
D. |
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Hint |
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7. |
Find the equation that contains a decreasing linear relationship. |
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A. |
y = 5 – 6x |
B. |
y = 4x – 3 |
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C. |
y = 12+ 2x |
D. |
y = 10 + x |
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Hint |
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8. |
Find the table that represents a graph with direct variation. |
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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. |
Two friends are playing catch with a baseball. The ball's flight can be modeled by the equation
y = 1 + 0.6x – 0.08x2, in meters. What is the height of the ball at its highest point? |
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A. |
3.78 m |
B. |
18.8 m |
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C. |
2.13 m |
D. |
1 m |
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Hint |
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10. |
What is the reciprocal of  ? |
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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. |
Use an exponent to write 177,147 as a power of 3. |
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A. |
39 |
B. |
317 |
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C. |
311 |
D. |
319 |
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Hint |
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12. |
Identify the decay factor in the equation p = 1,508,069 × 0.89n where p is the bacteria population and n is the number of days after a vaccine was administered. |
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A. |
n |
B. |
p |
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C. |
1,508,069 |
D. |
0.89 |
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Hint |
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13. |
Find a solution to the equation using backtracking.
 |
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A. |
n = –89 |
B. |
n = 10 |
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C. |
n = –100 |
D. |
n = –12 |
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Hint |
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14. |
Julian said, ''I'm thinking of a number. When I add 3 to my number, multiply the sum by 12, divide the product by 8, and subtract the result by 7, I get 11. What is the number I'm thinking of?'' |
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A. |
8 |
B. |
7 |
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C. |
9 |
D. |
10 |
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Hint |
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15. |
Use you calculator's Table feature to approximate the solutions to the nearest hundredth.
x(x – 7) = 36 |
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A. |
x = 10.45, x = –3.45 |
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B. |
x = 3.26, x = 6.31 |
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C. |
x = 11.00, x = –2.01 |
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D. |
x = –15.96, x = –1.15 |
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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. |
two |
B. |
all answers are correct |
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C. |
zero |
D. |
one |
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Hint |
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17. |
Use you calculator's Table feature to approximate the solutions to the nearest hundredth.
4x(x + 2) = 12 |
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A. |
x = 1, x = –3 |
B. |
x = 2, x = –2 |
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C. |
x = 0, x = –4 |
D. |
x = –1, x = –4 |
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Hint |
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18. |
If you want to scale a segment by a factor of 8, how long will the new segment be? |
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A. |
64 times its original size |
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B. |
 of its original size |
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C. |
8 times its original size |
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D. |
80% of its original size |
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Hint |
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19. |
A flare is shot up into the sky modeling the formula h(t) = 2 + 144t – 16t2, where h is in feet and t is in seconds. Find the maximum height of the flare. |
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A. |
350 ft |
B. |
326 ft |
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C. |
320 feet |
D. |
300 ft |
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Hint |
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20. |
Consider the function f(x) = 2x. Find the domain and range. |
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A. |
domain: all real numbers range: all real numbers less than zero |
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B. |
domain: all real numbers range: all real numbers |
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C. |
domain: all real numbers greater than zero range: all real numbers greater than zero |
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D. |
domain:all real numbers greater than zero range: all real numbers except zero |
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Hint |
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