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1. |
Solve 3r + 5 > 26. |
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A. |
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B. |
r > 21 |
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C. |
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D. |
r > 7 |
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Hint |
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2. |
Use elimination to solve the system of equations shown below.
2x - 4y = -5
3x + 4y = -15 |
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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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3. |
What is the solution of the system of equations shown below? |
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A. |
(3, 0) |
B. |
(0, 0) |
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C. |
(1, -2) |
D. |
(0, -3) |
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Hint |
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4. |
Find a number that when squared equals 484. |
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A. |
-22 only |
B. |
22 only |
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C. |
22 or -22 |
D. |
None of these is correct |
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Hint |
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5. |
The graph of a linear function is _______. |
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A. |
None of these is correct |
B. |
a straight line |
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C. |
a horizontal line only |
D. |
a curved line |
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Hint |
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6. |
The graph of y = -4x2 - 1 is _____. |
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A. |
a straight line |
B. |
a circle |
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C. |
None of these is correct. |
D. |
a parabola |
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Hint |
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7. |
Simplify  . |
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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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8. |
Find the situation that involves a decreasing linear relationship and has direct variation. |
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A. |
A bucket that begins at ground level and is lowered into a well at a rate of 1 foot per second. |
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B. |
The temperature that begins at 0°F at 6:00 a.m. rises 3°F every hour for 6 hours. |
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C. |
An airplane that begins at 20,000 feet and descends for a landing on the ground at the airport. |
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D. |
A submarine that begins at the bottom of the ocean and is raised to the surface of the water at 15 meters per second. |
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Hint |
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9. |
Find the equation that is nonlinear. |
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A. |
y = –3x – 1 |
B. |
y = 8 – x |
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C. |
y = 14 + 6x |
D. |
y = 4y2 |
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Hint |
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10. |
Which way does the graph of y = –2x2 open? |
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A. |
down |
B. |
up |
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C. |
right |
D. |
left |
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Hint |
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11. |
Find the cubic equation. |
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A. |
y = x2 + 5 |
B. |
y = 3x |
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C. |
y = x(x3 + 1) |
D. |
y = 5x3 + 2x |
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Hint |
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12. |
What is the relationship between constant second differences and the coefficient of the equation? |
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A. |
the second difference is the same as the coefficient |
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B. |
the second difference is –2 times the coefficient |
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C. |
the second difference is opposite the coefficient |
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D. |
the second difference is 2 times the coefficient |
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Hint |
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13. |
Which curve represents exponential decay? |
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A. |
curve a |
B. |
curve c |
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C. |
curve d |
D. |
curve b |
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Hint |
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14. |
Find a solution to the equation using backtracking.
 |
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A. |
c = –1 |
B. |
c = 8 |
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C. |
c = –14 |
D. |
c = 2 |
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Hint |
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15. |
A figure has rotation symmetry of 8°. How many identical parts must there be? |
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A. |
70 |
B. |
40 |
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C. |
45 |
D. |
272 |
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Hint |
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16. |
Find the correct representation of a translation. |
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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. |
Scale the figure below by 4. |
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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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18. |
Scale the figure below by . |
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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. |
Rule: (x, y)  (x + 3, y – 5). Find the correct translation. |
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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. |
Find the rule for the translation below. |
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A. |
rule: (x, y) (x – 1, y + 7) |
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B. |
rule: (x, y) (x – 1, y – 7) |
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C. |
rule: (x, y) (x + 7, y + 1) |
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D. |
rule: (x, y) (x – 7, y – 1) |
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Hint |
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