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1. |
A line contains the points whose coordinates are listed in the table. Determine the slope of the line. |
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A. |
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B. |
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C. |
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Hint |
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2. |
Which information is enough to write a linear equation in point-slope form? |
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A. |
the x-coordinates of two points on the line |
B. |
the slope of the line |
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C. |
the y-coordinates of two points on the line |
D. |
the x- and y-coordinates of two points on the line |
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Hint |
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3. |
Consider the scatter plot below. Which statement is not true about this scatter plot? |
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A. |
There appears to be a positive relationship. |
B. |
There appears to be a negative relationship. |
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C. |
As the values of x increase, the values of y increase. |
D. |
If a line was drawn approximately through the points on the scatter plot, the line would have a positive slope. |
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Hint |
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4. |
If a line is drawn through points on a scatter plot and a negative relationship is shown, then _____. |
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A. |
the slope of the line is 0 |
B. |
as the values of x increase, the values of y decrease |
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C. |
as the values of x increase, the values of y increase |
D. |
the slope of the line is undefined. |
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Hint |
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5. |
Determine the slope and y-intercept of the graph of –4 + 2y = 8x. |
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A. |
m = 4; b = 2 |
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B. |
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D. |
m = 2; b = 4 |
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Hint |
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6. |
To graph the equation by using the slope and y-intercept, you would ________. |
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A. |
graph the point at (–2, 0). Then go up 5 units and right 2 units. This will be the point at (0, 5). Then draw the line through points at (–2, 0) and (0, 5). |
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B. |
graph the point at (0, –2). Then go up 5 units and left 2 units. This will be the point at (–2, 3). Then draw the line through points at (0, –2) and (–2, 3). |
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C. |
graph the point at (0, –2). Then go up 5 units and right 2 units. This will be the point at (2, 3). Then draw the line through points at (0, –2) and (2, 3). |
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D. |
graph the point at (0, –2). Then go up 5 units and right 2 units. This will be the point at (3, 2). Then draw the line through points at (0, –2) and (3, 2). |
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Hint |
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7. |
The graphs of the equations y = –2x – 3 and y = –2x + 3 are a family of graphs because _________. |
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A. |
the slope of each line is –2 |
B. |
both slopes are negative |
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C. |
the y-intercepts are opposites |
D. |
both equations are solved for y |
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Hint |
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8. |
The graphs of the equations y = –5x + 1 and are a family of graphs because ________. |
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A. |
both equations are solved for y |
B. |
the slopes are reciprocals |
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C. |
the slopes are integers |
D. |
the y-intercepts are the same |
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Hint |
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9. |
A line contains the points whose coordinates are listed in the table. Determine the slope of the line. |
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A. |
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B. |
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C. |
2 |
D. |
-2 |
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Hint |
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10. |
Write the point–slope form of an equation for the line passing through (2, 3) with slope 2. |
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A. |
y – 3 = 2(x – 2) |
B. |
y + 2 = 2(x + 3) |
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C. |
y + 3 = 2(x + 2) |
D. |
y + 2 = 2(x + 3) |
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Hint |
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11. |
Write an equation in slope–intercept form of the line with slope -5 that passes through the point at (2, 3). |
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A. |
y = -5x + 13 |
B. |
y = 4x – 5 |
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C. |
y = -5x –7 |
D. |
y = 16x – 5 |
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Hint |
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12. |
Write an equation in slope–intercept form of the line that passes through the points at (-5, 4) and (3, -1). |
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A. |
y = - x +  |
B. |
x = - y +  |
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C. |
x = y –  |
D. |
y = x –  |
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Hint |
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13. |
Which two equations have graphs that are parallel? |
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A. |
y = x + 2 4y = 12x + 13 |
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B. |
y = 3x – 1 4y = 12x + 13 |
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C. |
y = 3x – 1 -3 – y = (x + 2) |
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D. |
y = x + 2 -3 – y = (x + 2) |
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Hint |
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14. |
Which equation is parallel to the graph of y = 2x + and passes through the point (4, 7)? |
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A. |
y = 2x + 3 |
B. |
y = x +  |
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C. |
y = 2x – 1 |
D. |
y = - x +  |
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Hint |
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