
Lesson 09: Slopes Don’t Have to be Positive | Unit 3: Linear Relationships
Presentation
•
Mathematics
•
8th Grade
•
Hard
Standards-aligned
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27 Slides • 10 Questions
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Multiple Choice
Suppose that during its flight, the elevation e (in feet) of a certain airplane and its time since takeoff t are related by a linear equation. Consider the graph of this equation, with time represented on the horizontal axis and elevation on the vertical axis. Decide if the slope is positive, zero, or negative for the below situation: The plane is cruising at an altitude of 37,000 feet above sea level.
Positive
Zero
Negative
29
Multiple Choice
Suppose that during its flight, the elevation e (in feet) of a certain airplane and its time since takeoff t are related by a linear equation. Consider the graph of this equation, with time represented on the horizontal axis and elevation on the vertical axis. Decide if the slope is positive, zero, or negative for the below situation: The plane is descending at a rate of 1,000 feet per minute.
Positive
Zero
Negative
30
Multiple Choice
Suppose that during its flight, the elevation e (in feet) of a certain airplane and its time since takeoff t are related by a linear equation. Consider the graph of this equation, with time represented on the horizontal axis and elevation on the vertical axis. Decide if the slope is positive, zero, or negative for the below situation: The plane is ascending at a rate of 2,000 feet per minute.
Positive
Zero
Negative
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Multiple Choice
Each square on a grid represents 1 unit on each side. Find the slope of the line.
−41
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Multiple Choice
Each square on a grid represents 1 unit on each side. Find the slope of the line.
−41
41
4
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Multiple Choice
Each square on a grid represents 1 unit on each side. Find the slope of the line.
−41
41
4
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Open Ended
Match each graph of a linear relationship to a situation that most reasonably reflects its context. Graph A:
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Open Ended
Match each graph of a linear relationship to a situation that most reasonably reflects its context. Graph B:
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Open Ended
Match each graph of a linear relationship to a situation that most reasonably reflects its context. Graph C:
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Open Ended
Match each graph of a linear relationship to a situation that most reasonably reflects its context. Graph D:
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