| |
| |
1. |
Name the property shown by the statement 6 · 7 · 3 = 6 · 3 · 7. |
| |
|
A. |
Commutative Property of Addition |
B. |
Commutative Property of Multiplication |
| |
|
C. |
Associative Property of Multiplication |
D. |
Associative Property of Addition |
| |
|
Hint |
|
| |
2. |
Find the difference -8 - (-2). |
| |
|
A. |
-6 |
B. |
-10 |
| |
|
C. |
6 |
D. |
10 |
| |
|
Hint |
|
| |
3. |
Find the sum -6.25 + (-1.3). |
| |
|
A. |
-4.95 |
B. |
7.55 |
| |
|
C. |
-7.55 |
D. |
4.95 |
| |
|
Hint |
|
| |
4. |
An equation stating that two ratios are equal is called a(n) ______. |
| |
|
A. |
equivalent equation |
B. |
cross product |
| |
|
C. |
rate |
D. |
proportion |
| |
|
Hint |
|
| |
5. |
A ratio that compares a number to one hundred is called a(n) _______. |
| |
|
A. |
scale |
B. |
cross product |
| |
|
C. |
hundredth |
D. |
percent |
| |
|
Hint |
|
| |
6. |
Find 12.5% of 32. |
| |
|
A. |
4 |
B. |
2.56 |
| |
|
C. |
256 |
D. |
400 |
| |
|
Hint |
|
| |
7. |
The graphs of the equations y = –2x – 3 and y = –2x + 3 are a family of graphs because _________. |
| |
|
A. |
both slopes are negative |
B. |
the slope of each line is –2 |
| |
|
C. |
both equations are solved for y |
D. |
the y-intercepts are opposites |
| |
|
Hint |
|
| |
8. |
To determine the speed of a vehicle involved in an accident, police officers use the formula  . In the formula, s is the speed in miles per hour, d is the length of the skid marks in feet, and f is the friction factor. Suppose for a particular accident d = 45 feet and f = 0.8. What was the approximate speed of the vehicle? |
| |
|
A. |
198 miles per hour |
B. |
84 miles per hour |
| |
|
C. |
14 miles per hour |
D. |
33 miles per hour |
| |
|
Hint |
|
| |
9. |
Solve 2x2 – 9x – 35 = 0. |
| |
|
A. |
 and 7 |
B. |
–5 and 7 |
| |
|
C. |
–7 and –5 |
D. |
–5 and  |
| |
|
Hint |
|
| |
10. |
A method that you can use to make any quadratic expression a perfect square is called ____________. |
| |
|
A. |
completing the term |
B. |
completing the square |
| |
|
C. |
quadratic factorization |
D. |
squaring the expression |
| |
|
Hint |
|
| |
11. |
Use the Quadratic Formula to solve –2x2 + 3x – 7 = 0. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
There are no real solutions for x. |
D. |
 |
| |
|
Hint |
|
| |
12. |
Use the Quadratic Formula to solve 5a2 – 2a = 7. |
| |
|
A. |
 and 1 |
B. |
–1 and  |
| |
|
C. |
There are no real solutions for a. |
D. |
–1 and  |
| |
|
Hint |
|
| |
13. |
Solve  . Identify the correct graph of the solution. |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
14. |
Which point is not a solution of  ? |
| |
|
A. |
(0, 0) |
B. |
(-2, -3) |
| |
|
C. |
(2, 3) |
D. |
(0, 3) |
| |
|
Hint |
|
| |
15. |
Solve the system 3x – 7y = 9 and 4x + 2y = 12. |
| |
|
A. |
(0, -3) |
B. |
(3, 0) |
| |
|
C. |
(0, 3) |
D. |
(-3, 0) |
| |
|
Hint |
|
| |
16. |
Solve the equation 3e + 4(e +3) = 2. |
| |
|
A. |
e = |
B. |
e =  |
| |
|
C. |
e = 2 |
D. |
e =  |
| |
|
Hint |
|
| |
17. |
The graph of the equation y = -x is not the parent graph of _______. |
| |
|
A. |
y = -2x |
B. |
y = -x – 4 |
| |
|
C. |
y = 3 – x |
D. |
y = -2x + 4 |
| |
|
Hint |
|
| |
18. |
Which equation's graph is perpendicular to the graph of the equation
y = - x + 2 |
| |
|
A. |
y = x –  |
B. |
y = -x + |
| |
|
C. |
y = - x + 1 |
D. |
y = x – 1 |
| |
|
Hint |
|
| |
19. |
Simplify  . |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
20. |
Solve  . |
| |
|
A. |
no solution |
B. |
d = 7 |
| |
|
C. |
d = 4 |
D. |
d = 7 and d = 4 |
| |
|
Hint |
|
|
|