| |
| |
1. |
Graph the solution set of |3y + 9| > 12. |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
2. |
If f(x) = [2x - 1], find f(5.4). |
| |
|
A. |
9 |
B. |
10 |
| |
|
C. |
8 |
D. |
9.8 |
| |
|
Hint |
|
| |
3. |
Solve the system of equations. 
|
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
4. |
What is the solution of the system of inequalities? 
|
| |
|
 |
| |
|
A. |
region 4 |
B. |
region 1 |
| |
|
C. |
region 3 |
D. |
region 2 |
| |
|
Hint |
|
| |
5. |
A feasible region has vertices at (4, 6), (-2, 3), (2, -2), and (3, 1). At which point is the maximum value of the function f(x, y) = 2x + y? |
| |
|
A. |
f(2, -2) |
B. |
f(3, 1) |
| |
|
C. |
f(-2, 3) |
D. |
f(4, 6) |
| |
|
Hint |
|
| |
6. |
Find the minimum value of f(x, y) = 4x - 2y for the polygonal region determined by the feasible region. |
| |
|
 |
| |
|
A. |
14 |
B. |
-28 |
| |
|
C. |
27 |
D. |
-14 |
| |
|
Hint |
|
| |
7. |
Evaluate  using expansion by minors. |
| |
|
A. |
14 |
B. |
64 |
| |
|
C. |
68 |
D. |
80 |
| |
|
Hint |
|
| |
8. |
Factor 8a4b - 3ab2c. |
| |
|
A. |
8ab(a2 - 3bc) |
| |
|
B. |
a2b(8a2 - 3bc) |
| |
|
C. |
abc(8a3 - 3b) |
| |
|
D. |
ab(8a3 - 3bc) |
| |
|
Hint |
|
| |
9. |
Simplify  |
| |
|
A. |
±84.5 |
B. |
-13 |
| |
|
C. |
±13 |
D. |
13 |
| |
|
Hint |
|
| |
10. |
What is the conjugate of 12 - 4i? |
| |
|
A. |
12 + 4i |
B. |
12 |
| |
|
C. |
 |
D. |
-4i |
| |
|
Hint |
|
| |
11. |
The formula for the perimeter of a rectangle is  , where  is the length of the rectangle and w is the width. If a rectangle is 17 ft long and 8 ft wide, what is its perimeter? |
| |
|
A. |
68 ft |
B. |
25 ft |
| |
|
C. |
42 ft |
D. |
50 ft |
| |
|
Hint |
|
| |
12. |
Find the domain of the relation shown in the graph. |
| |
|
 |
| |
|
A. |
{-3, -2, -1, 0, 1, 3} |
B. |
{-2, -1, 1, 2, 3, 5} |
| |
|
C. |
{-3, -2, -1, 0, 1, 2, 3, 5} |
D. |
{0, 1, 2, 3} |
| |
|
Hint |
|
| |
13. |
Is the relation shown in the graph a function? Why or why not? |
| |
|
|
| |
|
A. |
Yes, the relation contains very few ordered pairs. |
| |
|
B. |
No, the relation contains the ordered pairs (0, -1) and (3, -1). |
| |
|
C. |
No, the relation contains the ordered pairs (3, -1) and (3, 2). |
| |
|
D. |
Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line. |
| |
|
Hint |
|
| |
14. |
The table shows the average heights (in centimeters) of females ages 1-14. If this trend continues, about how tall will an average fifteen-year-old female be? |
| |
|
 |
| |
|
A. |
168.5 cm |
B. |
156.9 cm |
| |
|
C. |
160.3 cm |
D. |
163.7 cm |
| |
|
Hint |
|
| |
15. |
What is the slope of a constant function? |
| |
|
A. |
1 |
B. |
c, where f (x) = c |
| |
|
C. |
-1 |
D. |
0 |
| |
|
Hint |
|
| |
16. |
Which is true for the following system of equations?
3x -  y = 1
x + 2y = 7. |
| |
|
A. |
y > x |
B. |
cannot be determined from information given |
| |
|
C. |
y < x |
D. |
y = x |
| |
|
Hint |
|
| |
17. |
Find A – B if  and  |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
18. |
State whether the product of A3 × 4 and B3 × 4 is defined, and if it is defined, state the dimensions. |
| |
|
A. |
defined, 4 × 3 |
B. |
undefined |
| |
|
C. |
defined, 9 × 16 |
D. |
defined, 3 × 4 |
| |
|
Hint |
|
| |
19. |
In a sport similar to football, there are two ways to score: by the run or by the pass. Team A scored 244 points, while Team B scored 273 points. Team A scored by the pass 21 times, and by the run 11 times. Team B scored by the pass 27 times, and by the run 6 times. How many points is each score worth? |
| |
|
A. |
pass = 7 pointsrun = 14 points |
| |
|
B. |
pass = 5 pointsrun = 9 points |
| |
|
C. |
pass = 5 pointsrun = 23 points |
| |
|
D. |
pass = 9 pointsrun = 5 points |
| |
|
Hint |
|
| |
20. |
Simplify |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
2 |
| |
|
Hint |
|
|
|