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1. |
Find the value of  |
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A. |
-56 |
B. |
14 |
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C. |
5 |
D. |
-14 |
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Hint |
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2. |
Write an algebraic expression to represent ''the sum of 6 and three times a number squared.'' |
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A. |
6(3x) |
B. |
6 + 3x |
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C. |
6 + 3x2 |
D. |
6(3x)2 |
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Hint |
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3. |
Which equation describes graph A? |
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 |
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A. |
y = 2.25| x | - 1 |
B. |
y = | x - 1 | |
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C. |
y = 2.25x - 1 |
D. |
y = | 2.25x | |
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Hint |
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4. |
Solve the system of equations by graphing. 
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A. |
(2, 6) |
B. |
(6, 2) |
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C. |
(2, -6) |
D. |
(-6, 2) |
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Hint |
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5. |
Use Cramer's rule to solve the system of equations. 
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A. |
(0.4, 0.2) |
B. |
(0.011, 0.0055) |
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C. |
(0.2, 0.4) |
D. |
(-0.4, -0.2) |
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Hint |
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6. |
Solve the system of inequalities by graphing. 
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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7. |
Determine which ordered triple is a solution of the system of equations. 
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A. |
(1, -2, 6) |
B. |
(0, 0, 11) |
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C. |
(0, 1, -14) |
D. |
(-1, 2, -16) |
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Hint |
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8. |
 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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9. |
Find (c2 + 2c - 6)(c + 5). |
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A. |
c3 + 2c2 - 6c - 30 |
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B. |
c3 + 7c2 + 4c - 30 |
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C. |
c3 + 2c2 + 5 |
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D. |
c3 + 2c2 - 30 |
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Hint |
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10. |
Solve the proportion  for the value of z to the nearest hundredth. |
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A. |
0.39 |
B. |
2.10 |
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C. |
1.34 |
D. |
2.56 |
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Hint |
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11. |
The roots of x2 + 4x + 7 are________. |
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A. |
real and irrational |
B. |
real and rational |
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C. |
imaginary |
D. |
real and imaginary |
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Hint |
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12. |
Which is the graph of a function and its inverse? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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13. |
Which pair of functions are inverses? |
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A. |
f(x) = 4x, g(x) = -4x |
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B. |
f(x) = 2x + 1,
g(x) = 2x - 1 |
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C. |
 |
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D. |
 |
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Hint |
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14. |
Write the equation of the line through (5, -3) and (-2, -8) in slope-intercept form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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15. |
Write an equation in slope-intercept form for the line that has a slope of 2 and passes through (-4, -6). |
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A. |
y = 2x - 2 |
B. |
y = 2x - 8 |
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C. |
y = 2x + 2 |
D. |
y = 2x + 8 |
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Hint |
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16. |
Solve  |
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A. |
(–1, 2) |
B. |
(–2, 1) |
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C. |
(1, –2) |
D. |
(2, –1) |
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Hint |
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17. |
In order for a matrix to have an inverse, what must be true? |
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A. |
ad – bc = 1 |
B. |
ad – bc = 0 |
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C. |
ad – bc  0 |
D. |
ad – bc 1 |
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Hint |
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18. |
Suppose a matrix equation of a system of equations does not have a unique solution. What cannot be true? |
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A. |
 |
B. |
 |
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C. |
 is undefined |
D. |
ad – bc ? 0 |
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Hint |
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19. |
Write 3 · x · x · x · x · y · y · y · y using exponents. |
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A. |
3>x4y3 |
B. |
3x4y4 |
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C. |
3xy8 |
D. |
34x4y4 |
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Hint |
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20. |
A square root function,  , can be used to represent income made on an investment, with x being the amount originally spent, and f(x) being the profit. How much money would have to be spent in order to make $50? |
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A. |
$20 |
B. |
$2000 |
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C. |
$7.91 |
D. |
$2050 |
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Hint |
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