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1. |
Simplify 3(2a + b) + 6(a - 2b). |
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A. |
12a - 9b |
B. |
12a + 15b |
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C. |
12a + 9b |
D. |
12a + b |
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Hint |
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2. |
In a science experiment, students hung a cup from a spring and measured the length of the spring when candies were added to it. Their data are shown in the table below. Which statement is true? |
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A. |
The relation is not a function because there are two y values for some x values. |
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B. |
The relation is a function because for each x value, there is exactly one y value. |
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C. |
The relation is a function because the range values increase. |
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D. |
The relation is not a function because only a line can be a function. |
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Hint |
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3. |
Choose the scatter plot that has a prediction equation with a negative slope. |
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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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4. |
 |
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A. |
|x5| |
B. |
x |
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C. |
|x| |
D. |
x2 |
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Hint |
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5. |
Choose the line whose slope is undefined. |
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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 quadratic term in the function f(x) = 3x2 + 6x - 4? |
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A. |
3x2 |
B. |
3 |
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C. |
3x2 + 6x - 4 |
D. |
x2 |
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Hint |
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7. |
Solve the equation n2 +3n = 0 by graphing. |
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A. |
0, -3 |
B. |
3 |
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C. |
0 |
D. |
0, 3 |
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Hint |
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8. |
Solve 2x2 - 4x + 3 = 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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9. |
Find f(x + h) for f(x) = x2 + 2x. |
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A. |
x2 + 2xh + h2 + 2x + 2h |
B. |
x2 + 2x + 2h |
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C. |
x2 + 2x + h |
D. |
x2 + 2xh + h2 + 2x |
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Hint |
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10. |
Solve  |
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A. |
 |
B. |
{y | y  21} |
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C. |
{y | y < 21} |
D. |
 |
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Hint |
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11. |
Solve the inequality | f | > 4. |
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A. |
{f | f > -4 or f < 4} |
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B. |
{f | f < -4 or f > 4} |
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C. |
{f | -4 < f < 4} |
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D. |
{f | -4 > f > 4} |
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Hint |
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12. |
Solve the inequality 13 < -5x 3 < 17. |
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A. |
{x | 2 < x < -4} |
B. |
{x | 4 > x > -2} |
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C. |
{x | -2 < x < 4} |
D. |
{x | -4 < x < 2} |
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Hint |
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13. |
Graph the line passing through the point (2, -5) with a slope of 2. |
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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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14. |
Solve the system 4y 6x + 8z = 13, 10y 15x + 20z = 6, y 5x + 2z = 5. |
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A. |
infinite solutions |
B. |
(-3, 1, 7) |
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C. |
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D. |
no solution |
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Hint |
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15. |
Which of the following is prime? |
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A. |
3x2 6y |
B. |
3xy + 13x2 |
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C. |
5xy>2 + 10y |
D. |
7x2 y2 |
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Hint |
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16. |
Factor 4x2 5x 6. |
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A. |
(4x + 3)(x 2) |
B. |
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C. |
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D. |
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Hint |
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17. |
Solve  |
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A. |
18 |
B. |
36 |
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C. |
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D. |
no real solution. |
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Hint |
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18. |
Solve x2 + 14x + 49 = 0 by using the quadratic formula. |
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A. |
6, 8 |
B. |
6, 8 |
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C. |
7 |
D. |
7 |
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Hint |
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19. |
Find the vertex of the graph of the function  . |
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A. |
(1, 2) |
B. |
(1, 4) |
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C. |
(1, 4) |
D. |
(1, 2) |
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Hint |
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20. |
Given that  and  , find  . |
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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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