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1. |
Describe the graph. |
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A. |
not a relation but a function |
B. |
relation but not function |
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C. |
relation and function |
D. |
neither a relation nor a function |
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Hint |
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2. |
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 and 3 |
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C. |
all real numbers except 0 |
D. |
all real numbers except 3 |
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Hint |
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3. |
Find  (x) if f(x) = 3x2 + 1 and g(x) = 2x + 3. |
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A. |
12x2 + 36x + 28 |
B. |
6x2 - 5 |
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C. |
12x2 - 36x + 28 |
D. |
6x2 + 5 |
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Hint |
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4. |
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. |
47.5 or about 48 people per year |
B. |
475 people per year |
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C. |
4750 people per year |
D. |
47,500 people per year |
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Hint |
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5. |
Rewrite the equation 3x + y = 7 in slope-intercept form. |
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A. |
y = 7x + 3 |
B. |
y = -3x + 7 |
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C. |
y = -3x - 7 |
D. |
y = 3x - 7 |
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Hint |
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6. |
Write an equation in slope-intercept form for the line with a slope
of  and a y-intercept of -3. |
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A. |
y = x + 3 |
B. |
y =  x + 3 |
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C. |
y = x - 3 |
D. |
y = x - 3 |
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Hint |
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7. |
Determine whether the graphs of the pair of equations
3x - 2y = 7 and 3x + 2y = 7
are parallel, coinciding, or neither. |
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A. |
all are correct |
B. |
coinciding |
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C. |
parallel |
D. |
neither |
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Hint |
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8. |
Write the standard form of the equation of the line that passes through the point (-4, -2) and is perpendicular to the graph of 3x - 2y + 9 = 0. |
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A. |
2x + 3y + 14 = 0 |
B. |
3x - 2y - 14 = 0 |
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C. |
2x> + 3y - 14 = 0 |
D. |
3x - 2y + 14 = 0 |
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Hint |
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9. |
Determine two points that appear to represent the data in the scatter plot. Then find and interpret the slope. |
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A. |
Mary improved her free throw performance from year-to-year by an average of about 25%. |
B. |
Mary improved her free throw performance from year-to-year by an average of about 10%. |
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C. |
Mary improved her free throw performance from year-to-year by an average of about 20% |
D. |
Mary improved her free throw performance from year-to-year by an average of about 15% |
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Hint |
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10. |
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 0.74 |
B. |
about 0.65 |
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C. |
about 0.71 |
D. |
about 0.68 |
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Hint |
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11. |
Which is the graph of  ?
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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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12. |
Which is a graph of f(x) = |3x| - 1? |
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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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13. |
Which is the graph of the inequality x + 2y - 2  0? |
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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. |
Find the domain of f(g(x)) given f(x) =  , and g(x) = x-1 |
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A. |
x 1 |
B. |
x1,-1 |
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C. |
all real numbers |
D. |
x0, 1, -1 |
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Hint |
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15. |
Write an equation of the line that passes through the points (-2, 4) and (6, -4). |
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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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16. |
Find a linear equation that can be used as a model for the data shown. |
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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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17. |
Determine whether 3x - 5y + 1 = 0 and 6x - 10y + 2 = 0 are parallel, coinciding, or neither. |
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A. |
all are correct |
B. |
parallel |
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C. |
coinciding |
D. |
perpendicular |
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Hint |
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18. |
Determine the equation of the perpendicular bisector of the line segment with endpoints (1,5) and (-6, 3). |
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A. |
14x + 4y - 19 = 0 |
B. |
2x + 7y + 23 = 0 |
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C. |
2x + 7y - 23 = 0 |
D. |
14x + 4y + 19 = 0 |
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Hint |
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19. |
Determine two points that appear to represent the data in the scatter plot. Then find and interpret the slope. |
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A. |
Paul's test scores are neither increasing nor decreasing. |
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B. |
Paul's test scores improve an average of 3 points with each test. |
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C. |
Paul's test scores improve an average of 5 points with each test. |
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D. |
Paul's test scores improve an average of 15 points with each test. |
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Hint |
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20. |
Graph the equation  |
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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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