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1. |
Determine the slope of the line shown in the graph. |
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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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2. |
Which information is enough to write a linear equation in point-slope form? |
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A. |
the y-coordinates of two points on the line |
B. |
the x- and y-coordinates of two points on the line |
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C. |
the slope of the line |
D. |
the x-coordinates of two points on the line |
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Hint |
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3. |
Consider the graph below. In 1990, the population of Iowa Falls, Iowa, was 5435. In 1998, the population was 5137. An equation in point–slope form for the population of Iowa Falls, as shown in the graph, is______. |
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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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4. |
Given the slope m and y–intercept b of a line, the slope–intercept form of an equation of the line is_______. |
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A. |
x = my + b |
B. |
y = mb + x |
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C. |
y = mx + b |
D. |
y = bx + m |
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Hint |
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5. |
Children in grades one through six are measured for their height. A scatter plot is drawn where the ordered pairs are (grade, height). Which statement will be true? |
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A. |
If a line was drawn approximately through the points, a vertical line would result. |
B. |
The graph will show a positive relationship between the variables. |
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C. |
The graph will show no relationship between the variables. |
D. |
The graph will show a negative relationship between the variables. |
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Hint |
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6. |
Refer to the scatter plot below. Students were surveyed to find the number of minutes of TV watched per day and the number of minutes of exercise they engaged in per day. Which statement cannot be supported by the scatter plot? |
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A. |
There is a negative relationship between minutes of TV watched and minutes of exercise. |
B. |
Some students exercised for more than 80 minutes per day. |
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C. |
Students who watch a lot of TV score poorly on tests. |
D. |
As students watch more TV, they exercise less. |
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Hint |
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7. |
The graph of the equation y = x is not the parent graph of _______. |
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A. |
y = 3x |
B. |
y = 2x |
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C. |
y = 5 |
D. |
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Hint |
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8. |
Determine the slope of the line shown in the graph. |
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A. |
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B. |
0 |
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C. |
- |
D. |
undefined |
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Hint |
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9. |
Write an equation in slope–intercept form of the line with slope -2 and
y-intercept 0. |
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A. |
y = -2x |
B. |
y = - |
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C. |
y = -2 |
D. |
y = -x |
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Hint |
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10. |
Determine the slope and y-intercept of the graph of -9 – 4y = x + 3. |
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A. |
slope: -4
y-intercept: -12 |
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B. |
slope: -
y-intercept: -3 |
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C. |
slope: -3
y-intercept: - |
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D. |
slope: -12
y-intercept: -4 |
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Hint |
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11. |
What is the equation of the graph? |
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A. |
y = -4.5 |
B. |
x = -4.5 |
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C. |
x = 4.5 |
D. |
y = 4.5 |
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Hint |
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12. |
The graphs below are a family of graphs because __________. |
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A. |
they have the same y-intercept |
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B. |
they have the same x-intercept |
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C. |
they have the same slope |
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D. |
they have different slopes |
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Hint |
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13. |
Which two equations have graphs that are parallel? |
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A. |
y = 3x – 1
-3 – y = (x + 2) |
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B. |
y = x + 2
4y = 12x + 13 |
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C. |
y = x + 2
-3 – y = (x + 2) |
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D. |
y = 3x – 1
4y = 12x + 13 |
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Hint |
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14. |
What would the slope of  have to be for JKLM to be a trapezoid? |
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A. |
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B. |
- |
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C. |
- |
D. |
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Hint |
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