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1. |
State the domain of the function  |
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A. |
all real numbers except
0, 1, and 3 |
B. |
all real numbers except 0 |
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C. |
all real numbers except 3 |
D. |
all real numbers except
0 and 3 |
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Hint |
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2. |
The population of Abnerville was 12,500 people in 1950. In 2000, the population was 250,000. Find the average rate of increase in the population over the 50 year period. |
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A. |
47,500 people per year |
B. |
475 people per year |
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C. |
4750 people per year |
D. |
47.5 or about 48 people per year |
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Hint |
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3. |
Using the equation y = 50x + 50, predict y when x = 6. |
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A. |
400 |
B. |
300 |
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C. |
250 |
D. |
350 |
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Hint |
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4. |
The math scores, x, and chemistry scores, y, for six students are given in the table. Use a graphing calculator to find the Pearson product-moment correlation. |
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A. |
about 0.65 |
B. |
about 0.74 |
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C. |
about 0.71 |
D. |
about 0.68 |
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Hint |
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5. |
Which is a graph of f(x) = |3x| - 1? |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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6. |
Which is the graph of the inequality x + 2y - 2  0? |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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7. |
 |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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8. |
Determine the symmetry of the graph of xy = -4. |
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A. |
the line y = x |
B. |
none is correct |
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C. |
the line y = -x |
D. |
the line y = x and
the line y = -x |
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Hint |
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9. |
Which point is one of an infinite number of solutions for the inequality
y > (x + 2)2 - 4? |
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A. |
(1, 5) |
B. |
(2, 12) |
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C. |
(-1, 5) |
D. |
(3, 4) |
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Hint |
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10. |
Which is the graph of f(x) = |x| - 4 and its inverse? |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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11. |
Suppose I = 0.05(0.6G - 400), where G = the gross monthly pay and
I = the amount of the investment. Determine the equation which represents the inverse process. |
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A. |
G =  |
B. |
G =  |
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C. |
G =  |
D. |
G =  |
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Hint |
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12. |
The roots of the equation x2 - 8x - 20 = 0 are ____. |
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A. |
-2 and -10 |
B. |
2 and 10 |
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C. |
2 and -10 |
D. |
-2 and 10 |
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Hint |
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13. |
Find the rational zeros of the equation 2x4 - x3 - 21x2 + 9x + 27 = 0. |
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A. |
3, 1, -1,  |
B. |
3, -3, -1,  |
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C. |
3, -3, -1, |
D. |
3, 1, -1, |
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Hint |
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14. |
Change north latitude 10.625° to degrees, minutes, and seconds. |
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A. |
10° 37' 30" |
B. |
10° 36' 50" |
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C. |
10° 36' 30" |
D. |
10° 37' 50" |
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Hint |
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15. |
Which equation has an undefined slope? |
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A. |
x = 4 |
B. |
y = 4x |
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C. |
y = 4 |
D. |
y = 4x + 2 |
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Hint |
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16. |
Choose the best method to solve the system of equations x + y = 2
and y = 3x - 4. |
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A. |
Eliminate x |
B. |
Graphing |
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C. |
Eliminate y |
D. |
Substitution |
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Hint |
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17. |
Determine the type of discontinuity this function exhibits.
 |
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A. |
jump discontinuity |
B. |
none of these |
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C. |
infinite discontinuity |
D. |
point discontinuity |
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Hint |
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18. |
Determine the intervals on which the function f(x) =  is increasing and the intervals on which the function is decreasing. |
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A. |
increasing for x < -1 and x > -1 |
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B. |
increasing for all x |
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C. |
decreasing for x < -1 and increasing for x > -1 |
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D. |
increasing for x < -1 and decreasing for x > -1 |
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Hint |
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19. |
If y varies jointly as x and the cube root of z,
and y = 30 when x = -5
and z = 27, find y when z = -8 and x = 0.5. |
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A. |
y = -2 |
B. |
y = 20 |
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C. |
y = 4 |
D. |
y = 2 |
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Hint |
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20. |
Which best describes this graph? |
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A. |
direct variation |
B. |
joint variation |
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C. |
inverse variation |
D. |
none of these |
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Hint |
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