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1. |
If y varies inversely as x and y = 6 when x = 24, find x when y = 12. |
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A. |
24 |
B. |
12 |
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C. |
48 |
D. |
144 |
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Hint |
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2. |
Find  . |
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A. |
2 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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3. |
Find the quotient  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Express  in simplest form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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6. |
 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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7. |
Solve  . |
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A. |
-7 or 2 |
B. |
7 |
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C. |
-7 |
D. |
7 or 2 |
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Hint |
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8. |
Solve  . |
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A. |
4 |
B. |
0 |
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C. |
1 or 4 |
D. |
-2 |
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Hint |
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9. |
Which of the following is not true concerning inverse variation? |
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A. |
There is some nonzero constant k such that xy = k |
B. |
x1y1 = x2y2 |
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C. |
Its graph is defined for x = 0. |
D. |
As y increases, x decreases |
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Hint |
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10. |
State the excluded value(s) of  . |
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A. |
2, 3 |
B. |
5, –5, 2, 3 |
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C. |
5, –5 |
D. |
5 |
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Hint |
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11. |
Simplify  . State the excluded values of x. |
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A. |
 , excluded value is 3 |
B. |
 , excluded values are 1 and 3 |
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C. |
, excluded values are 1 and 3 |
D. |
, excluded value is 3 |
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Hint |
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12. |
The speed of light is 3 × 108 meters per second. How fast is this in kilometers per hour? |
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A. |
1.08 × 109 km/hr |
B. |
1.8 × 107 km/hr |
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C. |
8.3 × 107 km/hr |
D. |
3 × 105 km/hr |
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Hint |
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13. |
Which of the following expressions is not equal to  ? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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14. |
Find  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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15. |
What must be true about a division problem of a polynomial by a binomial in which there is a non-zero remainder? |
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A. |
The polynomial is of degree less than or equal to 2. |
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B. |
The polynomial has no factors. |
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C. |
The binomial is not a factor of the polynomial. |
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D. |
The polynomial is of degree greater than 2. |
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Hint |
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16. |
Find  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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17. |
Find the LCM of x2 – 5x + 6 and x2 + 4x – 12. |
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A. |
(x – 3)(x + 6) |
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B. |
(x – 3)(x + 6) |
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C. |
(x – 3)(x – 6)(x – 2) |
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D. |
(x – 3)(x + 6)(x – 2) |
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Hint |
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18. |
Which of the following is not one of the steps for adding rational expressions with unlike denominators? |
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A. |
Find the LCD. |
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B. |
Add just as with rational expressions with like denominators. |
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C. |
Change each rational expression into an equivalent expression with the LCD as the denominator. |
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D. |
Add the unlike denominators together. |
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Hint |
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