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Question
How can proportionality constant be determined from the best fit straight line graph?
Short/Brief Note
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Solution
Constant of proportionality can be determined from the best fit straight line by calculating the slope of the graph by using the formula.
Slope of graph = `"Difference between the co-ordinates on y-axis"/"for any two points on the graph line"`
= `"Difference between the co-ordinates on x-axis"/"for any two points on the graph line"`
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