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1. |
Use substitution to solve the system of equations given below.
y = 2x
5x - y = -24 |
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A. |
(-8, -16) |
B. |
infinitely many solutions |
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C. |
(-4, -8) |
D. |
no solution |
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Hint |
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2. |
Select the figure that has two lines of symmetry. |
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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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3. |
Find (3a + 4b)2 |
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A. |
9a2 + 24ab + 16b2 |
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B. |
3a2 + 24ab + 4b2 |
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C. |
9a2 + 12ab + 16b2 |
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D. |
9a2 + 16b2 |
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Hint |
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4. |
Find (4r + 7s)(4r - 7s) |
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A. |
16r2 - 56rs + 49s2 |
B. |
16r2 + 56rs + 49s2 |
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C. |
16r2 - 49s2 |
D. |
16r2 + 49s2 |
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Hint |
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5. |
Find  |
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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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6. |
The graph of a linear function is _______. |
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A. |
a horizontal line only |
B. |
a straight line |
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C. |
a curved line |
D. |
None of these is correct |
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Hint |
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7. |
 has vertices H(-3, -1), I(-2, -4), and J(-4, -4). Which graph shows the reflection image of the triangle over the y-axis? |
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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. |
If a rocket is fired from the ground with an initial velocity of 75 meters per second, then the height of the rocket after t seconds is h = 75t - 4.9t2. Find the height of the rocket after 3 seconds. |
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A. |
180.9 meters |
B. |
221.6 meters |
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C. |
130.4 meters |
D. |
252.5 meters |
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Hint |
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9. |
Graph A(-2, 5) and B(-3, 6). Then reflect A and B over the y-axis and graph A' and B'. |
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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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10. |
Factor x2 + 5x + 6. |
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A. |
prime |
B. |
(x + 2)(x + 3) |
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C. |
(x + 1)(x + 5) |
D. |
(x + 1)(x + 6) |
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Hint |
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11. |
Find the graph that does not have direct variation. |
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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. |
Describe how the graph of y = (x + 1)2 differs from the graph of y = x2. |
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A. |
the graph of y = (x + 1)2 moved up 1 unit |
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B. |
the graph of y = (x + 1)2 moved 1 unit to the left |
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C. |
the graph of y = (x+1)2 moved 1 unit to the right |
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D. |
the graph of y = (x + 1) 2 moved down 1 unit |
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Hint |
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13. |
Solve for y in terms of x.xy = 100 |
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A. |
x =  |
B. |
y =  |
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C. |
y =  |
D. |
y = 100x |
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Hint |
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14. |
Which differences are constant in a cubic equation? |
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A. |
fourth |
B. |
second |
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C. |
third |
D. |
first |
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Hint |
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15. |
Find the values for m and n which the conjecture (m – n)2 = m2 – n2 is false. |
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A. |
m = 1, n = 1 |
B. |
m = 1, n = 2 |
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C. |
m = 1, n = 0 |
D. |
m = –2, n = 0 |
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Hint |
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16. |
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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17. |
Expand the expression.(2s + 6)(2s – 6) |
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A. |
4s2 + 36 |
B. |
4s2 – 36 |
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C. |
4s2 + 24s– 36 |
D. |
4s2 – 24s– 36 |
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Hint |
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18. |
Solve the equation. |
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A. |
z = –2 |
B. |
z = –5 |
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C. |
z = 2 |
D. |
z = 5 |
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Hint |
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19. |
Give the approximate solution of this equation.5 + (2c – 3) 2 = 5 |
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A. |
c = –1.5 |
B. |
c = –1.5 and c = –1.5 |
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C. |
c = 1.5 |
D. |
c = 1.5 and c = –1.5 |
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Hint |
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20. |
In the quadratic formula, what does b2 – 4ac tell you. |
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A. |
the vertex of a quadratic equation |
B. |
the number of solutions in a quadratic equation |
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C. |
the places where a quadratic equation crosses the x-axis |
D. |
the solution(s) in a quadratic equation |
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Hint |
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