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1. |
Describe the graph. |
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A. |
relation and function |
B. |
neither a relation nor a function |
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C. |
relation but not function |
D. |
not a relation but a function |
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Hint |
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2. |
Use a graphing calculator to write a polynomial function to model the set of data. |
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A. |
0.9x - 1.3 |
B. |
0.9x + 1.3 |
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C. |
1.3x + 0.9 |
D. |
1.3x - 0.9 |
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Hint |
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3. |
Write north latitude 44° 10' 26" as a decimal rounded to the
nearest thousandth. |
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A. |
44.173° |
B. |
44.174° |
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C. |
44.177° |
D. |
44.172° |
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Hint |
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4. |
Evaluate tan  . |
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A. |
 |
B. |
 |
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C. |
- |
D. |
- |
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Hint |
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5. |
The magnitude of the zero vector is _____. |
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A. |
any positive number except 1 |
B. |
any negative number |
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C. |
1 |
D. |
0 |
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Hint |
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6. |
Graph  |
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A. |
 |
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B. |
 |
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C. |
 |
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D. |
 |
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Hint |
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7. |
In a circuit with alternating current,  , where E represents voltage, I current, and Z impedance. Determine the voltage in a circuit where there is a current of  amps and an impedance of  ohms. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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8. |
The equation of a circle is 3x2 + 3y2 – 6x + 12y – 24 = 0. Find its center and radius. |
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A. |
(–1, 2); 13 |
B. |
(1, –2); 13 |
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C. |
(–1, 2);  |
D. |
(1, –2); |
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Hint |
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9. |
Find the equation of the graph of  after it is rotated 30° about the origin. |
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A. |
 |
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B. |
 |
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C. |
 |
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D. |
 |
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Hint |
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10. |
 |
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A. |
108 |
B. |
143 |
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C. |
42 |
D. |
13 |
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Hint |
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11. |
Ilene analyzed her test scores and determined the equation of the best-fit line was y = 4.25x + 72. Predict her score for the 5th test. |
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A. |
72.5 |
B. |
93.25 |
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C. |
88.75 |
D. |
98.5 |
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Hint |
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12. |
Solve  for 0  x < 2 . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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13. |
Find the product  . Express the solution in rectangular form. |
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A. |
 |
B. |
0 |
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C. |
-3 |
D. |
3 |
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Hint |
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14. |
Find the equation of the asymptotes of a hyperbola with graph of  |
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A. |
y - 6 =  (x + 4) |
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B. |
y - 6 =  (x + 4) |
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C. |
y - 6 =  (x + 4) |
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D. |
y - 6 =  (x + 4) |
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Hint |
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15. |
Find the rectangular equation of the curve whose parametric equations are y = 2t2 + 4 and x = 4t, where  and identify the conic section. |
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A. |
 ellipse |
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B. |
8y = x2 - 32; ellipse |
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C. |
8y = x2 - 4; parabola |
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D. |
parabola |
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Hint |
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16. |
Identify the graph of
3x2 + 3y2 - 3xy +5x - 3y + 7 = 0. |
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A. |
ellipse |
B. |
parabola |
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C. |
hyperbola |
D. |
circle |
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Hint |
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17. |
Write the equation  in exponential form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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18. |
The population of deer in a certain area can be modeled by the Verhulst population model with growth factor 1.5. Presently, there are 68 deer in the area, and a maximum of 80 could possibly be sustained. Find the population of deer after 3 years. (pn + 1 = pn + 1.5pn (1 - pn) ) |
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A. |
72 |
B. |
83 |
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C. |
81 |
D. |
79 |
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Hint |
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19. |
Find the probability of randomly picking 3 kittens of which at least 2 are female kittens, from a group of 7 male kittens and 5 female kittens. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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20. |
What is the total area under the normal curve and above the horizontal axis? |
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A. |
10 |
B. |
0 |
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C. |
1 |
D. |
 |
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Hint |
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