1 Math Supplement The Proportionality A “is proportional to” B.

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Presentation transcript:

1 Math Supplement The Proportionality A “is proportional to” B

2 Math Supplement The Proportionality A “is proportional to” B A α B

3 Math Supplement The Proportionality A “is proportional to” B A α B A = (constant) B The constant is called the Constant of Proportionality

4 Math Supplement The Proportionality A α B A = (constant) B Equation of a line y = mx +b m = slope b = y intercept A B The slope of the line is equal to the constant of proportionality For a strict proportionality, b = 0

5 Math Supplement The Proportionality A α B A = (constant) B Equation of a line y = mx +b m = slope b = y intercept A B “High” slope “Low” slope