| |
| |
1. |
Choose the graph of f(x) = |x| - 2. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
2. |
Solve the system of equations by using the elimination method. 
|
| |
|
A. |
(34, -13) |
B. |
(12, -2) |
| |
|
C. |
(4, 2) |
D. |
(2, 3) |
| |
|
Hint |
|
| |
3. |
Determine which matrix has a determinant. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
[1 -4 -8] |
| |
|
Hint |
|
| |
4. |
If  , find I so that  |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
5. |
Simplify (18q3r)(2qr4). |
| |
|
A. |
36q4r5 |
B. |
36q3r5 |
| |
|
C. |
36q3r4 |
D. |
36qr |
| |
|
Hint |
|
| |
6. |
Simplify  |
| |
|
A. |
k3 |
B. |
k-3 |
| |
|
C. |
 |
D. |
k17 |
| |
|
Hint |
|
| |
7. |
Simplify  |
| |
|
A. |
x - 4 |
B. |
x + 4 |
| |
|
C. |
x2 + 7 |
D. |
x + 7 |
| |
|
Hint |
|
| |
8. |
Find the vertex of the graph of f(x) = x2 + 4x - 5. |
| |
|
A. |
(-2, -9) |
B. |
(2, 7) |
| |
|
C. |
(-2, 9) |
D. |
(0, -5) |
| |
|
Hint |
|
| |
9. |
Find the vertex of the graph of the function f(x) = x2 - 6x + 5. |
| |
|
A. |
(-6, 5) |
B. |
(3, 4) |
| |
|
C. |
(3, -4) |
D. |
(-3, 4) |
| |
|
Hint |
|
| |
10. |
Stan the Hot Dog Man sells 100 hot dogs per day for $2 each, so his daily revenue is $200. He estimates that for every 25 cents he increases the price of a hot dog, he will sell 5 fewer. What range of prices can he charge so that his daily revenue is at least $225? |
| |
|
A. |
$3.00-$4.50 |
B. |
$2.25-$2.50 |
| |
|
C. |
$2.50-$4.50 |
D. |
$2.00-$4.00 |
| |
|
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. |
42 ft |
B. |
25 ft |
| |
|
C. |
50 ft |
D. |
68 ft |
| |
|
Hint |
|
| |
12. |
Name the sets of numbers to which  belongs. |
| |
|
A. |
Irrationals and Reals |
B. |
Naturals, Wholes, Integers, Rationals, and Reals |
| |
|
C. |
Integers, Rationals, and Reals |
D. |
Rationals and Reals |
| |
|
Hint |
|
| |
13. |
Solve the inequality | 6x + 2 | < 5. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
14. |
Solve the inequality –13 < -5x – 3 < 17. |
| |
|
A. |
{x | 2 < x < -4} |
B. |
{x | -4 < x < 2} |
| |
|
C. |
{x | -2 < x < 4} |
D. |
{x | 4 > x > -2} |
| |
|
Hint |
|
| |
15. |
What is the slope of the line with equation  |
| |
|
A. |
 |
B. |
7 |
| |
|
C. |
 |
D. |
-7 |
| |
|
Hint |
|
| |
16. |
Two sides of an angle are contained in lines whose equations are 6x + 4y = 15 and 7x – 9y = 3. Find the coordinates of the vertex of the angle. Round to the nearest hundredth. |
| |
|
A. |
(–147, –87) |
B. |
(–1.79, 1.06) |
| |
|
C. |
(1.79, 1.06) |
D. |
(147, 87) |
| |
|
Hint |
|
| |
17. |
Determine whether the expression 5x3y3 – x2y2 is a polynomial. |
| |
|
A. |
Yes. |
B. |
No, because there are two variables. |
| |
|
C. |
Cannot be determined from given information. |
D. |
No, because there are two terms. |
| |
|
Hint |
|
| |
18. |
Determine whether the expression x + y + z is a monomial, binomial, or trinomial. |
| |
|
A. |
monomial |
B. |
trinomial |
| |
|
C. |
binomial |
D. |
Cannot be determined from given information. |
| |
|
Hint |
|
| |
19. |
If a perfect square is equal to a constant, what is the best method to solve the quadratic equation? |
| |
|
A. |
Quadratic Formula |
B. |
Completing the Square |
| |
|
C. |
Square Root Property |
D. |
Factoring |
| |
|
Hint |
|
| |
20. |
Solve x2 + 7x < –12 algebraically. |
| |
|
A. |
{x| –3 < x < –4} |
B. |
{x| –4 < x < –3} |
| |
|
C. |
{x| 4 < x < 3} |
D. |
{x| 3 < x < 4} |
| |
|
Hint |
|
|
|