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1. |
Describe the line that is graphed below. |
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A. |
passes through the point (3,-2) with a slope of  |
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B. |
passes through the point (3,2) with a slope of  |
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C. |
passes through the point (3,-2) with a slope of  |
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D. |
passes through the point (3,-2) with a slope of  |
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Hint |
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2. |
Find the slope-intercept form of an equation of the line that has a slope of and passes through (8,2). |
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A. |
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B. |
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D. |
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Hint |
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3. |
When Kristin works 8 hours, she earns $60. When she works 20 hours, she earns $150. Write a linear equation that describes her earnings. Assume that the changes increase linearly. |
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B. |
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Hint |
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4. |
Write an equation of the line that passes through (10,-4) and is perpendicular to the line whose equation is  |
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Hint |
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5. |
The equations y = -0.38x + 56.6 and y = 0.38x + 43.4 represent the percent of men and women, respectively, receiving bachelor's degrees, where x is the number of years since 1968. In approximately what year did the same percent of men and women receive bachelor's degrees? |
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A. |
1985 |
B. |
1995 |
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C. |
1990 |
D. |
1980 |
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Hint |
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6. |
Which coordinates are not of the vertices of the feasible region for the system of inequalities? 
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A. |
(5, 4) |
B. |
(0, 6) |
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C. |
(5, 1) |
D. |
(2, 4) |
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Hint |
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7. |
Find the value of 63. |
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A. |
216 |
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B. |
36 |
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C. |
18 |
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D. |
729 |
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Hint |
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8. |
Find an equation of the line that passes through (0, -6) and (5, 3). |
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Hint |
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9. |
Use substitution to solve the system of equations given below.
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A. |
no solution |
B. |
(-5, 5) |
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C. |
infinitely many solutions |
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Hint |
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10. |
Which point is not a solution for the system of inequalities? |
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A. |
(2, -5) |
B. |
(3, -3) |
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C. |
(-2, -7) |
D. |
(-3, 7) |
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Hint |
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11. |
Determine which point is a solution to the system of inequalities by graphing.
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A. |
(3, 2) |
B. |
(5, 6) |
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C. |
(0, 7) |
D. |
no solution |
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Hint |
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12. |
Write the slope-intercept form of an equation for the line that passes through (-4, -26) and is parallel to  |
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Hint |
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13. |
Which of the following systems of equations is inconsistent? |
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A. |
y = 2x – 3 y = –3x + 4 |
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B. |
3y + 2x = 13 6y + 4x = 3 |
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C. |
y = 7x – 2 y = –2x – 5 |
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D. |
4y – x = 12 3y – 2x = 1 |
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Hint |
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14. |
Which of the following systems of equations is not consistent and independent? |
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A. |
y + 4x = 10 6y + 24x = 60 |
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B. |
–y – 5x = 1 4y + 3x = 8 |
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C. |
2y + 4x = 3 7y + 5x = 18 |
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D. |
7y + x = 9 3y + 9x = 4 |
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Hint |
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15. |
Solve the system of equations 3x – 5y = 4
–2x + 4y = 3. |
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B. |
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Hint |
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16. |
Use substitution to solve the system of equations given by x – 4y = 24 and 3x – 4y = 16. |
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A. |
(10, 3.5) |
B. |
(10, -3.5) |
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C. |
(-4, 7) |
D. |
(-4, -7) |
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Hint |
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17. |
Vince and Brian each need two kinds of items at the store. Vince bought 10 of item A and 14 of item B and spent $97. Brian bought 8 of item A and 25 of item B, and spent $119. How much did each item cost? |
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A. |
item A = $5.50
item B = $3 |
B. |
item A = $750
item B = $3.50 |
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C. |
item A = $5
item B = $3.50 |
D. |
item A = $4.50
item B = $3 |
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Hint |
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18. |
Solve  by the method of determinants. Round to the nearest hundredth. |
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A. |
(1.86, 2.20) |
B. |
(2.46, 1.20) |
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C. |
(-1.86, -2.20) |
D. |
(1.68, 4.40) |
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Hint |
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