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1. |
Determine the slope of the line that passes through (2, 2) and (5, 8). |
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A. |
-2 |
B. |
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C. |
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D. |
2 |
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Hint |
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2. |
Which equation is the slope-intercept form of the equation of the line that passes through (1, 2) and is parallel to 4x - 2y = 6? |
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A. |
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B. |
y = -2x + 1 |
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C. |
y = 4x + 3 |
D. |
y = 2x |
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Hint |
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3. |
Three out of the four equations listed below are equations of lines that are parallel to each other. Which equation does not have a graph that is a line parallel to the other three? |
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A. |
8y = - 6x |
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B. |
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C. |
3x + 4y = -16 |
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D. |
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Hint |
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4. |
The table shows the possible lengths and widths of a rectangle that has an area of 72 square centimeters. Make a scatter plot of the data. |
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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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5. |
What is the slope of the line through the points A(-3, 4) and B(2, -1)? |
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A. |
-3 |
B. |
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C. |
-1 |
D. |
1 |
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Hint |
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6. |
Determine the slope of the line containing the points P(-7, -8) and
Q(3, 0). |
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A. |
-2 |
B. |
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C. |
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D. |
2 |
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Hint |
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7. |
The graph of a linear function is _______. |
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A. |
a curved line |
B. |
a straight line |
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C. |
None of these is correct |
D. |
a horizontal line only |
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Hint |
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8. |
Which characteristic describes a graph that is linear and has direct variation. |
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A. |
The equation has the form y = mx. |
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B. |
The graph does not pass through (0, 0). |
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C. |
Variables x and y are not proportional. |
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D. |
The equation has the form y = mx + b. |
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Hint |
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9. |
Find the equation that has direct variation. |
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A. |
y = 5x + 1.3 |
B. |
y = 0.8x + 9 |
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C. |
y = –3x – 1 |
D. |
y = 4x |
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Hint |
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10. |
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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11. |
Find the equation that contains a decreasing linear relationship. |
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A. |
y = 4x – 3 |
B. |
y = 10 + x |
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C. |
y = 5 – 6x |
D. |
y = 12+ 2x |
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Hint |
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12. |
Find the situation that is linear but does not have direct variation. |
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A. |
At the beginning of the summer, Dina had $0 in the bank. She started a job and deposited $10 per week. |
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B. |
At the beginning of the summer, Dina had $0 in the bank. She earned $50 mowing lawns the previous week and deposited the money in the bank. |
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C. |
At the beginning of the summer, Dina had $200 in the bank. She withdrew $30 to buy a new pair of shorts. |
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D. |
At the beginning of the summer, Dina had $200 in the bank. She started a job and deposited $10 per week. |
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Hint |
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13. |
Find the graph that is nonlinear. |
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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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14. |
Find the equation that is nonlinear. |
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A. |
y = 4y2 |
B. |
y = 14 + 6x |
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C. |
y = –3x – 1 |
D. |
y = 8 – x |
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Hint |
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15. |
Michael just got a job mowing his elderly neighbor's lawn paying him $10 each week. Draw a graph showing the amount he receives is increasing very rapidly. Suppose you graph the time in weeks on the horizontal axis and the amount Michael receives on the vertical 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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16. |
Pam's mother gives Pam $20 each week for lunch to be bought at the school cafeteria. Lunches cost $4 per day. Draw a graph showing the amount Pam has left decreasing very slowly. Suppose you graph the time in days on the horizontal axis and the amount Pam has left on the vertical 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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17. |
Which line is parallel to the line listed below?
 |
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A. |
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B. |
y = 2x - 5 |
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C. |
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D. |
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Hint |
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18. |
Which three points are collinear? |
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A. |
(–5, –3), (–2, 3), (2, –4) |
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B. |
(4, –3), (2, –2), (–4, 1) |
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C. |
(–1, 1), (2, 3), (5, 2) |
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D. |
(3, 1), (4, 0), (–1, 2) |
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Hint |
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19. |
Which three points are collinear? |
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A. |
(–4, 4), (0, –4), (–1, –2) |
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B. |
(1, 2), (–3, –2), (–2, –4) |
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C. |
(3, –1), (2, 5), (2, –3) |
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D. |
(–5, 2), (1, 1), (4, 4) |
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Hint |
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20. |
Write the equation in slope-intercept form.
–6x = –10 – 2y |
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A. |
y = 3x + 8 |
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B. |
y = 3x – 5 |
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C. |
–6x + 2y + 10 = 0 |
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D. |
y + 8 = 3(x + 1) |
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Hint |
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