Understanding graphs of proportional relationships

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Examples
Lessons
  1. The graph below shows the cost of chocolate bars.
    Understanding graphs of linear relationships and solve word problem
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    1. Describe the patterns represented on the graph.
    2. Create a table of values from the graph.
    3. From the graph, estimate the cost of 12 chocolate bars.
    4. It is reasonable to add a point between the ones on the graph? Why or why not?
  2. The graph shows the distance a car travels.
    Understanding graphs of linear relationships
    .
    1. What does (180, 3) represent?
    2. What is the speed of the car at point A?
    3. Is the graph showing a linear relationship? Why or why not?
    4. It is reasonable to add a point between the ones on the graph? Explain.