| |
| |
1. |
Using the equation y = 50x + 50, predict y when x = 6. |
| |
|
A. |
400 |
B. |
250 |
| |
|
C. |
300 |
D. |
350 |
| |
|
Hint |
|
| |
2. |
 |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
3. |
A triangle ABC has vertices A(3, -1), B(4, -2), and C(7, 1). Find the coordinates of the dilated triangle for a scale factor of 3. |
| |
|
A. |
A,/i>'(12, -6), B'(21, 3),
C'(-9, -3) |
B. |
A'(21, 3), B'(12, -6),
C'(-9, -3) |
| |
|
C. |
A'(-3, 9), B'(-6, 12),
C'(3, 21) |
D. |
A'(9, -3), B'(12, -6),
C'(21, 3) |
| |
|
Hint |
|
| |
4. |
Which is the graph of y  x3 + 1? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
5. |
Describe the end behavior of f(x) = x2 + 1. |
| |
|
A. |
As x  ,f(x)  ,
and as x , f(x) . |
| |
|
B. |
As x , f(x) ,
and as x , f(x) . |
| |
|
C. |
As x , f(x) ,
and as x , f(x) . |
| |
|
D. |
none of these |
| |
|
Hint |
|
| |
6. |
Locate the extrema for the graph of y = f(x). |
| |
|
 |
| |
|
A. |
The extrema are (-2, 1) and (4, 3). |
B. |
The extrema are (-1, 1) and (4, 3). |
| |
|
C. |
The extrema are (-2, 1) and (1, -1). |
D. |
The extrema are (-2, 1),
(1, -1) and (4, 3). |
| |
|
Hint |
|
| |
7. |
In the equation x3 + x2 + 4x + 4 = 0, how many times does the graph of the related function cross the x-axis? |
| |
|
A. |
2 |
B. |
3 |
| |
|
C. |
1 |
D. |
0 |
| |
|
Hint |
|
| |
8. |
The equation x2 + x - 1 = 0 cannot be solved by ____. |
| |
|
A. |
factoring |
B. |
completing the square |
| |
|
C. |
using the quadratic formula |
D. |
graphing |
| |
|
Hint |
|
| |
9. |
If you divide a polynomial by the factor x + 6 and a remainder of zero results, which conclusion is true? |
| |
|
A. |
x + 6 is a factor of the polynomial. |
B. |
x - 6 is a factor of the polynomial. |
| |
|
C. |
x - 6 is not a factor of the polynomial. |
D. |
x + 6 is not a factor of the polynomial. |
| |
|
Hint |
|
| |
10. |
Approximate the real zeros of the function f(x) = 2x2 + 4x + 1 to the nearest tenth. |
| |
|
A. |
-1.7 and -0.3 |
B. |
-1.8 and -0.2 |
| |
|
C. |
-1.8 and -0.4 |
D. |
-1.6 and -0.2 |
| |
|
Hint |
|
| |
11. |
Decompose  into partial fractions. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
12. |
Solve  . |
| |
|
A. |
-10 |
B. |
-6 |
| |
|
C. |
8 |
D. |
4 |
| |
|
Hint |
|
| |
13. |
Solve  . |
| |
|
A. |
2 |
B. |
0 |
| |
|
C. |
1 |
D. |
3 |
| |
|
Hint |
|
| |
14. |
Change north latitude 10.625° to degrees, minutes, and seconds. |
| |
|
A. |
10° 36' 50" |
B. |
10° 37' 30" |
| |
|
C. |
10° 37' 50" |
D. |
10° 36' 30" |
| |
|
Hint |
|
| |
15. |
If  find  |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
7 |
| |
|
Hint |
|
| |
16. |
In  find c if A = 36°, B = 101°, and b = 42.7. |
| |
|
 |
| |
|
A. |
about 25.3 units |
B. |
about 29.7 units |
| |
|
C. |
about 31.8 units |
D. |
about 40.2 units |
| |
|
Hint |
|
| |
17. |
Determine the number of possible solutions for , given
a = 7, b = 3, and A = 115°. |
| |
|
A. |
none |
B. |
one |
| |
|
C. |
two |
D. |
three |
| |
|
Hint |
|
| |
18. |
Which equation has an undefined slope? |
| |
|
A. |
y = 4x + 2 |
B. |
x = 4 |
| |
|
C. |
y = 4x |
D. |
y = 4 |
| |
|
Hint |
|
| |
19. |
Which is an odd function? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
20. |
The equation f(-x) = -f(x) is true for which statement? |
| |
|
A. |
both odd functions and relations symmetrical about the origin |
B. |
only even functions |
| |
|
C. |
only odd functions |
D. |
only functions with point symmetry |
| |
|
Hint |
|
|
|