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1. |
State the domain and range of the relation. |
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A. |
All real numbers are included in the domain and the range. |
B. |
All real numbers are included in the domain, and 3 is included in the range. |
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C. |
3 is included in the domain, and all real numbers are included in the range. |
D. |
3 is included in the domain, and 3 is included in the range. |
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Hint |
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2. |
State the domain and the range of the relation {(1, 2), (-4, 2), and (3, 5)}. Then state whether the relation is a function. |
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A. |
The domain is {2, 5}, the range is {-4, 1, 3}, and the relation is not a function. |
B. |
The domain is {2, 5}, the range is {-4, 1, 3}, and the relation is a function. |
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C. |
The domain is {-4, 1, 3}, the range is {2, 5}, and the relation is a function. |
D. |
The domain is {-4, 1, 3}, the range is {2, 5}, and the relation is not a function. |
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Hint |
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3. |
Given f(x) = 3x + 2x - 2 and g(x) = 4x + 1, find  |
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A. |
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B. |
3x2 - 2x - 3 |
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C. |
3x2 + 6x - 1 |
D. |
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Hint |
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4. |
The revenue for the sale of x objects is r(x) = 8x. The cost of manufacturing x objects is c(x) = 0.5x + 300. Write the profit function. |
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A. |
7.5x - 300 |
B. |
8.5x - 300 |
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C. |
7.5x + 300 |
D. |
8.5x + 300 |
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Hint |
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5. |
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. |
6x2 + 5 |
D. |
12x2 + 36x + 28 |
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Hint |
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6. |
Find the first three iterates, x1, x2, and x3, of the function f(x) = 3x - 1 for an initial value x0=1. |
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A. |
2, 5, 14 |
B. |
-4, -13, -40 |
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C. |
8, 23, 88 |
D. |
5, 14, 41 |
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Hint |
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7. |
Find the zero of the function f(x) = -8x + 4. |
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A. |
2 |
B. |
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C. |
-2 |
D. |
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Hint |
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8. |
Write an equation in slope-intercept form for the line with a slope -3 and passes through the point (4, 2). |
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A. |
y = -3x - 8 |
B. |
y = -3x + 14 |
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C. |
y = -3x + 2 |
D. |
y = -3x + 4 |
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Hint |
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9. |
Find a linear equation that can model the data shown in the graph. |
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A. |
2x + 3y + 6 = 0 |
B. |
3x - 2y + 6 = 0 |
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C. |
2x -3y + 6 = 0 |
D. |
2x + 5y - 3 = 0 |
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Hint |
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10. |
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. |
2x + 3y + 14 = 0 |
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C. |
3x - 2y + 14 = 0 |
D. |
3x - 2y - 14 = 0 |
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Hint |
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11. |
What type of relationship or pattern does the scatter plot suggest? |
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A. |
a linear relationship whose data have a positive relationship |
B. |
no pattern |
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C. |
none of these |
D. |
a linear relationship whose data have a negative relationship |
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Hint |
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12. |
Which is the graph of ?
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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 > -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. |
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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15. |
State the domain and range of the relation. Then state whether the relation is a function.{(2,-1), (-2,4), (2,5), (3,6)} |
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A. |
Domain {-2,2,3} Range {-1,4,5,6}The relation is not a function. |
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B. |
Domain {-2,2,3} Range {-1,4,5,6} The relation is a function. |
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C. |
Domain {-1,4,5,6}Range {-2,2,3}The relation is a function. |
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D. |
Domain {-1,4,5,6}Range {-2,2,3} The relation is not a function. |
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Hint |
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16. |
Find the first three iterates of the function g(x) = x2 + x for an initial value of x0 = 1. |
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A. |
= 2
= 6
= 42 |
B. |
= 2
= 6
= 12 |
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C. |
= 2
= 6
= 36 |
D. |
= 0
= 2
= 4 |
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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. |
parallel |
B. |
coinciding |
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C. |
perpendicular |
D. |
all are correct |
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Hint |
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18. |
Graph the data on a scatter plot. |
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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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19. |
A bank charges a $10 fee if the account balance is less than $200. If the balance is in between $200 and $500 there is a $5 fee. If at least $500 is in the account, there is no fee.Graph the fee schedule for different account balances. |
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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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20. |
Which is the graph of the inequality y > |2x + 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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