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1. |
Use the scatter plot to predict the mileage of an engine with 250 horsepower. |
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A. |
20 |
B. |
25 |
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C. |
10 |
D. |
12 |
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Hint |
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2. |
Simplify  Assume the denominator is not equal to zero. |
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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. |
Determine the slope of the line containing the points P(-7, -8) and
Q(3, 0). |
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A. |
 |
B. |
 |
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C. |
2 |
D. |
-2 |
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Hint |
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4. |
Find a number that when squared equals 484. |
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A. |
None of these is correct |
B. |
22 only |
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C. |
22 or -22 |
D. |
-22 only |
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Hint |
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5. |
Solve the equation x2 = 0.81. |
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A. |
x = 0.9 or x = -0.9 |
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B. |
none of these is correct |
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C. |
x = 0.9 only |
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D. |
x = -0.9 only |
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Hint |
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6. |
Determine whether the number  is rational or irrational. |
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A. |
irrational |
B. |
neither |
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C. |
rational |
D. |
both |
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Hint |
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7. |
The graph of y = -4x2 - 1 is _____. |
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A. |
a straight line |
B. |
a parabola |
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C. |
None of these is correct. |
D. |
a circle |
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Hint |
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8. |
Simplify  |
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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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9. |
Find the graph that is nonlinear. |
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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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10. |
What is the equation of a line that has a slope of 3 and passes through (–4, –3)? |
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A. |
y = 3x + 3 |
B. |
y = 3x + 9 |
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C. |
y = 3x – 9 |
D. |
y = 3x – 3 |
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Hint |
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11. |
Which three points are collinear? |
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A. |
(3, –1), (2, 5), (2, –3) |
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B. |
(–5, 2), (1, 1), (4, 4) |
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C. |
(–4, 4), (0, –4), (–1, –2) |
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D. |
(1, 2), (–3, –2), (–2, –4) |
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Hint |
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12. |
Describe the location of the line of symmetry of the graph of y = x2 – 2. |
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A. |
the line y = x |
B. |
the horizontal axis |
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C. |
the vertical axis |
D. |
there is no line of symmetry |
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Hint |
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13. |
Solve for y in terms of x.xy = 100 |
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A. |
y =  |
B. |
y = 100x |
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C. |
x =  |
D. |
y =  |
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Hint |
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14. |
What is the reciprocal 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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15. |
How does b affect graphs of equations in the form of  ? |
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A. |
positive values of b move the graph to the left, negative values move it to the right |
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B. |
negative values of b move the graph to the left, positive values move it to the right |
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C. |
b affects the length of the graph |
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D. |
b affects the width of the graph |
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Hint |
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16. |
What is a conjecture? |
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A. |
a ''shot in the dark'' guess that hasn't been proved yet |
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B. |
an educated guess that hasn't been proved yet |
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C. |
a ''shot in the dark'' guess that has been proved |
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D. |
an educated guess that has been proved |
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Hint |
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17. |
What type of relationship does the equation have if its first differences are constant? |
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A. |
linear |
B. |
constant |
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C. |
quadratic |
D. |
cubic |
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Hint |
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18. |
How many counterexamples are needed to prove a conjecture wrong? |
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A. |
1 |
B. |
3 |
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C. |
4 |
D. |
2 |
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Hint |
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19. |
Suppose your parents buy a new car for $21,000. What will the value of the car be in 5 years if the car depreciates by 10% each year.? |
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A. |
$11,160 |
B. |
$15,309 |
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C. |
$10,044 |
D. |
$12,400 |
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Hint |
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20. |
Evaluate. |
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A. |
2 |
B. |
–3 |
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C. |
3 |
D. |
–2 |
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Hint |
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