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1. |
Simplify 3(2a + b) + 6(a - 2b). |
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A. |
12a + 15b |
B. |
12a - 9b |
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C. |
12a + b |
D. |
12a + 9b |
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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. |
Write  in standard form where A, B, and C are integers whose greatest common factor is 1. |
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A. |
3x - 8y = 16 |
B. |
3x - 8y = 2 |
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C. |
3x + 8y = 16 |
D. |
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Hint |
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4. |
State the slope and y-intercept of the graph of -y = -0.9x + 4. |
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A. |
m = -0.9, b = 4 |
B. |
m = -4, b = 0.9 |
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C. |
m = 4, b = -0.9 |
D. |
m = 0.9, b = -4 |
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Hint |
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5. |
Choose the scatter plot that has a prediction equation with a negative slope. |
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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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6. |
Which equation describes graph A? |
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A. |
y = | x - 1 | |
B. |
y = | 2.25x | |
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C. |
y = 2.25x - 1 |
D. |
y = 2.25| x | - 1 |
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Hint |
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7. |
When two lines have different slopes, the graphs of the equations are _________ |
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A. |
horizontal lines. |
B. |
parallel lines. |
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C. |
the same line. |
D. |
intersecting lines. |
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Hint |
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8. |
Solve the system of inequalities by graphing. 
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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. |
What is the solution of the system of inequalities? 
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A. |
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B. |
region 1 |
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C. |
region 3 |
D. |
region 2 |
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Hint |
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10. |
What is the solution of the system of inequalities? 
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A. |
region 2 |
B. |
region 1 |
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C. |
region 3 |
D. |
region 4 |
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Hint |
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11. |
Which coordinates are not of the vertices of the feasible region for the system of inequalities? 
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A. |
(2, 4) |
B. |
(0, 6) |
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C. |
(5, 4) |
D. |
(5, 1) |
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Hint |
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12. |
Find the value of 63. |
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A. |
216 |
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B. |
36 |
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C. |
18 |
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D. |
729 |
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Hint |
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13. |
Evaluate z – (2yz + y) · y if y = -3 and z = 2. |
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A. |
-43 |
B. |
47 |
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C. |
9 |
D. |
23 |
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Hint |
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14. |
Solve the equation x – 82 = 143 |
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A. |
225 |
B. |
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C. |
-61 |
D. |
61 |
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Hint |
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15. |
Evaluate | 5 (a – 2b) + 3 | if a = -3 and b = 7. |
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A. |
85 |
B. |
-85 |
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C. |
88 |
D. |
82 |
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Hint |
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16. |
Graph the line through (2, 3) that is perpendicular to the line with equation 2x + 5y = 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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17. |
A scatter plot is __________. |
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A. |
a table of data |
B. |
a line graph |
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C. |
a line graphed in a portion of Quadrant I of the coordinate plane |
D. |
a set of data graphed as ordered pairs in a coordinate plane |
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Hint |
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18. |
When finding the equation for a line of fit for a scatter plot, you should use __________. |
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A. |
the point most characteristic of the scatter plot |
B. |
two points that you think represent the data well |
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C. |
all of the points on the plot |
D. |
the first and last points on the plot, with respect to the horizontal |
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Hint |
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19. |
The matrix  is an example of which of the following matrices? |
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A. |
all of the above |
B. |
square matrix |
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C. |
row matrix |
D. |
column matrix |
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Hint |
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20. |
State whether the product of A3 × 4 and B3 × 4 is defined, and if it is defined, state the dimensions. |
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A. |
defined, 4 × 3 |
B. |
defined, 3 × 4 |
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C. |
undefined |
D. |
defined, 9 × 16 |
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Hint |
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