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1. |
Determine whether the number  is rational or irrational. |
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A. |
neither |
B. |
both |
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C. |
rational |
D. |
irrational |
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Hint |
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2. |
Triangle RST has vertices R(-3, 2), S(0, -5), and T(4, 5). When translated R' has coordinates (4, 1). Find the coordinates of S' and T'. |
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A. |
S'(7, -6), T'(11, 4) |
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B. |
S'(-7, 6), T'(-11, 4) |
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C. |
S'(-6, 7), T'(4, 11) |
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D. |
S'(7, -6), T'(4, 11) |
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Hint |
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3. |
Solve a2 – 12a = -27. |
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A. |
a = 9 |
B. |
a = -27 or a = -15 |
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C. |
a = 3 |
D. |
a = 3 or a = 9 |
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Hint |
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4. |
Find  . |
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A. |
 |
B. |
 |
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C. |
2 |
D. |
 |
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Hint |
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5. |
Simplify the polynomial 7x - 2y. |
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A. |
5x |
B. |
5xy |
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C. |
5y |
D. |
7x - 2y |
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Hint |
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6. |
Pam's mother gives Pam $20 each week for lunch to be bought at the school cafeteria. Lunches cost $4 per day. Draw a graph showing the amount Pam has left decreasing very slowly. Suppose you graph the time in days on the horizontal axis and the amount Pam has left on the vertical axis. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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7. |
How many diagonals does a 25-sided polygon have? |
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A. |
550 |
B. |
300 |
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C. |
25 |
D. |
275 |
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Hint |
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8. |
Two friends are playing catch with a baseball. The ball's flight can be modeled by the equation
y = 1 + 0.6x – 0.08x2, in meters. What is the height of the ball at its highest point? |
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A. |
2.13 m |
B. |
1 m |
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C. |
3.78 m |
D. |
18.8 m |
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Hint |
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9. |
Consider the following conjecture. If an even number is written 2k, where k is a whole number, then 2k + 1 must be an odd number. What can be your next course of action in dealing with this conjecture? |
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A. |
test every possible case to prove the conjecture |
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B. |
all answers are correct |
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C. |
find a counterexample to disprove the conjecture |
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D. |
develop an argument to prove the conjecture |
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Hint |
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10. |
Which equation represents exponential growth? |
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A. |
y = 250 ·  x |
B. |
y = 250 × 0.25x |
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C. |
y = 250 × 0.4c |
D. |
y = 250 × 4x |
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Hint |
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11. |
Find the table that does not represent an exponential equation. |
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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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12. |
Evaluate.  |
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A. |
5 |
B. |
8 |
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C. |
–6 |
D. |
6 |
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Hint |
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13. |
Evaluate. |
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A. |
–2 |
B. |
–3 |
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C. |
2 |
D. |
3 |
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Hint |
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14. |
The sum of three consecutive even numbers is 54. Find the three numbers. |
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A. |
15, 16, 17 |
B. |
18, 19, 20 |
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C. |
16, 17, 18 |
D. |
16, 18, 20 |
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Hint |
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15. |
Scale the figure below by . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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16. |
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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17. |
Expand the expression.(2s + 6)(2s – 6) |
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A. |
4s2 – 24s– 36 |
B. |
4s2 + 24s– 36 |
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C. |
4s2 – 36 |
D. |
4s2 + 36 |
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Hint |
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18. |
Factor the quadratic expression.x2 + 2x – 24 |
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A. |
(x + 6)(x + 4) |
B. |
(x – 6)(x + 4) |
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C. |
(x + 6)(x – 4) |
D. |
(x – 6)(x – 4) |
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Hint |
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19. |
Find the quadratic equation with 1 solution. |
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A. |
x2 – 2x + 2= 0 |
B. |
x2 + 6x + 9 = 0 |
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C. |
x2 – 10x + 21= 0 |
D. |
4x2 + 4x – 35= 0 |
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Hint |
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20. |
Hector needs to build a rectangular pen for his dog. He decides to use an area of 50 m2 in his backyard for the pen. Using l for the length and w for the width, express the area in terms of the two variables. |
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A. |
l + w = 50 |
B. |
lw = 50 |
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C. |
w = 50 – w |
D. |
 |
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Hint |
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