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1. |
Express 0.0000421 in scientific notation. |
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A. |
4.21 × 10-5 |
B. |
4.21 × 10-6 |
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C. |
4.21 × 10-9 |
D. |
4.21 × 10-4 |
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Hint |
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2. |
Which inequality is graphed below? |
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A. |
y < 8 |
B. |
y < 8 |
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C. |
x < 8 |
D. |
y > 8 |
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Hint |
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3. |
Use elimination to solve the system of equations.
-x + 2y = 18
x + 8y = -38 |
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A. |
(-22, -2) |
B. |
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C. |
(-5, -1) |
D. |
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Hint |
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4. |
The sum of two numbers is 36. Twice the first number minus the second is 6. Find the numbers. |
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A. |
(42, 6) |
B. |
(10, 26) |
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C. |
(30, 6) |
D. |
(14, 22) |
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Hint |
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5. |
Use the scatter plot to predict the mileage of an engine with 250 horsepower. |
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A. |
10 |
B. |
25 |
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C. |
20 |
D. |
12 |
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Hint |
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6. |
Which ordered pair is a solution of y < -4x - 5? |
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A. |
(1, -3) |
B. |
(0, 6) |
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C. |
(2, 3) |
D. |
(-7, 0) |
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Hint |
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7. |
Solve the equation x2 = 0.81. |
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A. |
x = 0.9 or x = -0.9 |
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B. |
x = -0.9 only |
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C. |
x = 0.9 only |
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D. |
none of these is correct |
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Hint |
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8. |
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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9. |
Find the equation that has direct variation. |
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A. |
y = 4x |
B. |
y = 0.8x + 9 |
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C. |
y = 5x + 1.3 |
D. |
y = –3x – 1 |
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Hint |
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10. |
What is the equation of a line that has a slope of –1 and passes through (–2, 0)? |
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A. |
y = –2x + 1 |
B. |
y = –x – 1 |
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C. |
y = –x – 2 |
D. |
y = –x + 2 |
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Hint |
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11. |
What is the equation of a line that has a slope of 3 and passes through (–4, –3)? |
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A. |
y = 3x + 3 |
B. |
y = 3x – 9 |
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C. |
y = 3x – 3 |
D. |
y = 3x + 9 |
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Hint |
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12. |
Which line is parallel to the line listed below?
 |
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A. |
 |
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B. |
y = 2x - 5 |
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C. |
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D. |
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Hint |
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13. |
Write the equation in slope-intercept form.
–6x = –10 – 2y |
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A. |
y = 3x + 8 |
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B. |
–6x + 2y + 10 = 0 |
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C. |
y + 8 = 3(x + 1) |
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D. |
y = 3x – 5 |
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Hint |
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14. |
What is the lowest point on the graph of y = x2 + 2? |
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A. |
(0, –2) |
B. |
(0, 2) |
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C. |
(2, 0) |
D. |
(0, 0) |
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Hint |
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15. |
What type of relationship does the equation have if its second differences are constant? |
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A. |
quadratic |
B. |
linear |
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C. |
constant |
D. |
cubic |
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Hint |
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16. |
Which curve represents exponential decay? |
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A. |
curve d |
B. |
curve c |
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C. |
curve a |
D. |
curve b |
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Hint |
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17. |
Find a solution to the equation by doing the same thing to both sides.
3(5f + 7) + 9(f + 4) = 9 |
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A. |
f = –12 |
B. |
f = –10 |
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C. |
f = –9 |
D. |
f = –2 |
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Hint |
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18. |
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. |
9 |
B. |
7 |
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C. |
10 |
D. |
8 |
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Hint |
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19. |
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 = –15.96, x = –1.15 |
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D. |
x = 11.00, x = –2.01 |
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Hint |
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20. |
How many solutions can a graph of y = ax2 + bx + c have? |
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A. |
zero |
B. |
two |
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C. |
one |
D. |
all answers are correct |
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Hint |
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