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1. |
Given f(x) = 3x + 2x - 2 and g(x) = 4x + 1, find  |
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A. |
3x2 + 6x - 1 |
B. |
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C. |
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D. |
3x2 - 2x - 3 |
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Hint |
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2. |
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. |
8.5x + 300 |
B. |
8.5x - 300 |
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C. |
7.5x - 300 |
D. |
7.5x + 300 |
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Hint |
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3. |
Jane is opening a home-based business. She determined that she will need $4500 to buy a computer and supplies to start. She expects expenses for each following month to be $800. Write an equation that models the total expense y after x months. |
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A. |
y = 800x - 4500 |
B. |
y = 800x + 4500 |
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C. |
y = 4500x + 800 |
D. |
y = 4500x - 800 |
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Hint |
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4. |
Find a linear equation that can model the data shown in the graph. |
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A. |
3x - 2y + 6 = 0 |
B. |
2x -3y + 6 = 0 |
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C. |
2x + 5y - 3 = 0 |
D. |
2x + 3y + 6 = 0 |
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Hint |
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5. |
Use a graphing calculator to find the equation of the regression line. |
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A. |
y = 12x - 23,947 |
B. |
y = 2x - 25 |
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C. |
y = 23x - 21,000 |
D. |
y = x - 576 |
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Hint |
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6. |
Solve the system of equations x = 4 and 3x - 4y = 12 by graphing. |
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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. |
Solve the system of equations by elimination.
2x + y - z = 3
x + y + z = 5
x - 2y + z = 2
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A. |
(1, 2, 1) |
B. |
(2, 2, 1) |
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C. |
(2, 1, 2) |
D. |
(1, 1, 2) |
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Hint |
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8. |
Find the inverse 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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9. |
If you use the parent graph y =  as a reference, how would you
graph y = - 3? |
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A. |
Move the parent graph up 3 units. |
B. |
Move the parent graph down 3 units. |
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C. |
Move the parent graph to the left 3 units. |
D. |
Move the parent graph to the right 3 units. |
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Hint |
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10. |
Use the graphing calculator f(x) =  x3 +  x2 - x, and
locate the relative maximum point. |
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A. |
(0, 0) |
B. |
(-1, 0.833) |
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C. |
(0.5, -0.292) |
D. |
There is no relative maximum point. |
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Hint |
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11. |
How can you tell if two lines are perpendicular? |
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A. |
The slopes are opposite reciprocals. |
B. |
The slopes are the same. |
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C. |
The slopes are reciprocals. |
D. |
The slopes are opposites. |
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Hint |
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12. |
Write the equation of the line that is parallel to 2x - 3y - 15 = 0 and that passes through the point (3,4). |
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A. |
2x + 3y + 6 = 0 |
B. |
2x + 5 - 3 = 0 |
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C. |
2x - 2y + 6 = 0 |
D. |
2x - 3y + 6 = 0 |
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Hint |
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13. |
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. |
88.75 |
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C. |
93.25 |
D. |
98.5 |
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Hint |
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14. |
Which is the graph of the inequality 2x + y + 3 >0? |
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B. |
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D. |
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Hint |
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15. |
Use matrices to determine the coordinates of the image of
 with vertices A(-3,4), B(-5,2) and C(-6,5) once it is rotated 90°. |
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A. |
A'(3,4), B(5,2) and C'(6,5) |
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B. |
A'(3,-4), B(5,-2) and C'(6,-5) |
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C. |
A'(-3,-4), B(-5,-2) and C'(-6,-5) |
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D. |
A'(-4,-3), B(-2,-5) and C'(-5,-6) |
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Hint |
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16. |
Which is the graph of y  ? |
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B. |
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D. |
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Hint |
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17. |
Use a graphing calculator to graph f(x) = x5 + x4 - x3 + 4 and to determine and classify the extrema. |
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A. |
relative minimum (-2,-4) relative maximum (0,4) |
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B. |
relative maximum (0.487, 3.968)relative minimum (1.24,5.34) |
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C. |
relative maximum (-2,-4)relative minimum (0,4) |
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D. |
relative maximum (-1.27, 5.35)relative minimum (0.487, 3.968) |
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Hint |
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18. |
Determine the equation of the vertical asymptote for the function:
f(x) =  + 2. |
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A. |
x = -2 |
B. |
y = 0 |
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C. |
x = 0 |
D. |
x = 2 |
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Hint |
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19. |
Determine the slant asymptote for f(x) =  . |
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A. |
y = 4 |
B. |
y = -x + 3 |
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C. |
y = x + 3 |
D. |
y = x + 4 |
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Hint |
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20. |
Graph the function  |
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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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