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1. |
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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B. |
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D. |
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Hint |
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2. |
What is the first step in solving the system of equations using the elimination method? 
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A. |
Multiply the second equation by 2. |
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B. |
Add the equations. |
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C. |
Solve the first equation for x. |
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D. |
Subtract the second equation from the first equation. |
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Hint |
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3. |
Use the elimination method to solve the system of equations. 
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B. |
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C. |
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D. |
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Hint |
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4. |
A feasible region has vertices at (4, 6), (-2, 3), (2, -2), and (3, 1). At which point is the maximum value of the function f(x, y) = 2x + y? |
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A. |
f(2, -2) |
B. |
f(-2, 3) |
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C. |
f(4, 6) |
D. |
f(3, 1) |
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Hint |
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5. |
Which coordinates are not of the vertices of the feasible region for the system of inequalities? 
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A. |
(2, 4) |
B. |
(5, 4) |
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C. |
(0, 6) |
D. |
(5, 1) |
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Hint |
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6. |
Students from the local high school are selling tickets to the town's annual carnival. Adult admission is $5.00 and child admission is $2.50. Two hours after the carnival opened its first day, 440 tickets had been sold totaling $1900. How many adults and how many children entered the carnival during the first two hours it was open? |
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A. |
220 adults, 220 children |
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B. |
293 adults, 147 children |
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C. |
320 adults, 120 children |
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D. |
380 adults, 760 children |
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Hint |
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7. |
Which point is not a solution for the system of inequalities? |
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A. |
(-3, 7) |
B. |
(3, -3) |
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C. |
(-2, -7) |
D. |
(2, -5) |
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Hint |
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8. |
Which equation describes the line that contains the points (7, 17) and (15, 33)? |
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A. |
y = -2x + 31 |
B. |
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D. |
y = 2x + 3 |
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Hint |
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9. |
A ticket service is selling tickets to a concert. An order of 4 tickets has a price of $63 and an order of 6 tickets has a price of $92. Write an equation to find the price of any amount of tickets. |
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Hint |
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10. |
Write the slope-intercept form of an equation for a line perpendicular to the graph of y = -3x + 5 and passes through the x-intercept of that line. |
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A. |
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Hint |
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11. |
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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12. |
What is the slope of the line with equation  |
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A. |
7 |
B. |
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C. |
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D. |
-7 |
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Hint |
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13. |
The Waxmans just opened a carpet store. Their startup costs were $5000, and their cost of carpet is $8 per square yard. How many square yards of carpet do they need to sell in order to break even if they sell the carpet for $18 per square yard? |
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A. |
500 square yards |
B. |
192 square yards |
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C. |
278 square yards |
D. |
50 square yards |
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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. |
7y + x = 9 3y + 9x = 4 |
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B. |
2y + 4x = 3 7y + 5x = 18 |
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C. |
–y – 5x = 1 4y + 3x = 8 |
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D. |
y + 4x = 10 6y + 24x = 60 |
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Hint |
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15. |
Which graph represents the following system:  |
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Hint |
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16. |
Use substitution to solve the system of equations given by y =  and 28x – 32y = -8. |
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A. |
no solution |
B. |
infinitely many solutions |
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C. |
(2, 2) |
D. |
(1, 1) |
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Hint |
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17. |
Solve  by the method of determinants. |
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A. |
(-0.2, 0.4) |
B. |
(-0.4, -0.2) |
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C. |
(-0.2, -0.4) |
D. |
(0.4, 0.2) |
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Hint |
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18. |
Solve  by the method of determinants. |
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B. |
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D. |
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Hint |
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