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1. |
Which equation is graphed below? |
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A. |
x - 3y = -6 |
B. |
3x + y = 6 |
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C. |
x + 3y = 6 |
D. |
3x - y = -6 |
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Hint |
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2. |
Find the mean of the set {14, 16, 23, 9, 13, 31, 12, 28}. |
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A. |
15 |
B. |
19 |
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C. |
16.5 |
D. |
18.25 |
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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. |
(-5, -1) |
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C. |
 |
D. |
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Hint |
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4. |
Factor 14x2 - 28y2 + 56 |
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A. |
14(x2 - 14y2 + 42) |
B. |
14(x2 - 2y2 + 4) |
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C. |
(2x + 7y + 2)(7x - 4y + 2) |
D. |
14xy(x - 2y + 4) |
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Hint |
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5. |
Factor 7xy2 - 28x3 |
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A. |
(7xy + x)(y – 28x2) |
B. |
7x(y + 2x)(y - 2x) |
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C. |
prime |
D. |
7x2y2(1 + x) |
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Hint |
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6. |
Which side measures do not form a right triangle? |
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A. |
10, 12, 15 |
B. |
5, 12, 13 |
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C. |
3, 4, 5 |
D. |
9, 40, 41 |
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Hint |
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7. |
If one leg of a right triangle is 17.2 cm and the other leg is 22.5 cm, what is the length of the hypotenuse? |
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A. |
39.7 cm |
B. |
6.3 cm |
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C. |
28.3 cm |
D. |
22.5 cm |
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Hint |
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8. |
If  3 4, which lines must be parallel? |
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A. |
d and e |
B. |
a and c |
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C. |
a and d |
D. |
a and b |
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Hint |
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9. |
If AB = 1, WX = 2, BD = 7, and YZ = 3, then what is the measure of  ? |
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A. |
4 |
B. |
10 |
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C. |
14 |
D. |
11 |
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Hint |
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10. |
If P is the center of the circle, find the value of x. |
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A. |
 |
B. |
34 |
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C. |
-25 |
D. |
23 |
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Hint |
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11. |
What are the coordinates of A´ if trapezoid ABCD is reflected over the x-axis? |
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A. |
A'(7, 5) |
B. |
A'(-7, -5) |
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C. |
A'(7, -5) |
D. |
A'(-7, 5) |
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Hint |
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12. |
The Waxmans just opened a carpet store. Their startup costs were $5000, and their cost of carpet is $8 per square yard. How many square yards of carpet do they need to sell in order to break even if they sell the carpet for $18 per square yard? |
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A. |
500 square yards |
B. |
50 square yards |
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C. |
192 square yards |
D. |
278 square yards |
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Hint |
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13. |
Which of the following is true concerning matrix multiplication of three matrices A, B, and C? |
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A. |
C(A + B) = CA + CB |
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B. |
AB = BA for all cases |
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C. |
(A + B)C = CA + CB |
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D. |
AB = BA for no cases |
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Hint |
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14. |
Determine whether the expression x + y + z is a monomial, binomial, or trinomial. |
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A. |
trinomial |
B. |
binomial |
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C. |
Cannot be determined from given information. |
D. |
monomial |
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Hint |
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15. |
Find the area of a triangle with base 2x + 3 and height 3x – 1. |
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A. |
5x2 + 7x – 3 |
B. |
 x2 +  x – 3 |
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C. |
3x2 + x  |
D. |
6x2 + 7x – 3 |
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Hint |
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16. |
Solve 3x = –42. |
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A. |
–45 |
B. |
14 |
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C. |
–14 |
D. |
–39 |
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Hint |
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17. |
Find the area of the figure shown. |
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A. |
92 cm2 |
B. |
96 cm2 |
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C. |
48 cm2 |
D. |
64 cm2 |
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Hint |
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18. |
Find the area of the figure shown. |
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A. |
90 ft2 |
B. |
108 ft2 |
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C. |
30 ft2 |
D. |
54 ft2 |
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Hint |
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19. |
Which of the following cannot be true concerning solving a system of equations by determinants? |
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A. |
ed - bf = 0 |
B. |
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C. |
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D. |
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Hint |
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20. |
A farmer raises two crops that are shipped to 3 distributors. The table shows the number of crates shipped to each distributor. The profit on crop 1 is $2.50 per crate. The profit on crop 2 is $2.75 per crate. Find the amount of profit from Distributor B. |
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A. |
$770 |
B. |
$1540 |
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C. |
$2095 |
D. |
$1542.50 |
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Hint |
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