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1. |
Name the property illustrated by (3c · 6)2 = 3c(6 · 2). |
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A. |
commutative property of multiplication |
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B. |
associative property of multiplication |
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C. |
associative property of addition |
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D. |
commutative property of addition |
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Hint |
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2. |
Graph the solution set of |3y + 9| > 12. |
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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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3. |
State the slope of the line graphed below. |
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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. |
The table below shows the land-speed records to the nearest mile per hour. Draw a scatter plot for the data and use it to predict the approximate land-speed record for the year 2005. Assume the rate of increase of speed records remains the same. |
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A. |
700 mph |
B. |
600 mph |
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C. |
830 mph |
D. |
980 mph |
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Hint |
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5. |
Use the substitution method to solve m - n = 7 and 3m + 2n = 6. |
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A. |
(4, -3) |
B. |
(-5, 2) |
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C. |
(-3, -10) |
D. |
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Hint |
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6. |
What is the value of the determinant? |
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A. |
-3 |
B. |
-8 |
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C. |
12 |
D. |
-12 |
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Hint |
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7. |
Find A - B if  and  |
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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 the dimensions of A6 × 3 · B3 × 1. |
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A. |
6 × 1 |
B. |
6 × 3 |
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C. |
3 × 1 |
D. |
3 × 3 |
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Hint |
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9. |
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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10. |
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A. |
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B. |
[10 37] |
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C. |
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D. |
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Hint |
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11. |
For the determinant  , which is the minor of -4? |
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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. |
Choose the line whose slope is undefined. |
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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. |
The temperature in degrees Fahrenheit can be expressed by the function F(c) = 1.8c + 32 where c is the temperature in degrees Celsius. Find the temperature in degrees Fahrenheit (to the nearest degree) if it is 18° C outside. |
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A. |
42 |
B. |
212 |
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C. |
20 |
D. |
64 |
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Hint |
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14. |
What is the inequality represented in the graph? |
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A. |
x + 2y > 4 |
B. |
x + 2y > 4 |
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C. |
x + 2y  4 |
D. |
x + 2y  4 |
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Hint |
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15. |
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. |
278 square yards |
B. |
50 square yards |
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C. |
500 square yards |
D. |
192 square yards |
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Hint |
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16. |
Which of the following is always true about inequalities whose graphs do not overlap? |
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A. |
Their slopes are equal. |
B. |
Each slope is negative. |
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C. |
Their slopes are opposite reciprocals. |
D. |
Each slope is positive. |
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Hint |
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17. |
The matrix  is an example of which of the following matrices? |
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A. |
square matrix |
B. |
row matrix |
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C. |
column matrix |
D. |
all of the above |
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Hint |
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18. |
What translation matrix should be used to translate a figure with five vertices up 3 units and right 2 units? |
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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  has vertices A(3, 4), B(-2, 1) and C(2, –3). Dilate so that its perimeter is one-fourth the original perimeter. What are the coordinates of the vertices 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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20. |
Solve 2.4x + 1.7y = 8.2, 3.8x – 0.8y = 5.3. Round to the nearest hundredth. |
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A. |
(–1.86, 2.20) |
B. |
(1.86, 2.20) |
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C. |
(–1.86, –2.20) |
D. |
(1.86, –2.20) |
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Hint |
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