Proportional Relationships - relationships between two variables where their ratios are equivalent. Also known as direct variation, Independent Variable - x-axis and input, Dependent Variable - y-axis and output, Unit Rate - comparison of two quantities in which the denominator has a value of one unit., Proportional Graph - Straight line that goes through the origin, Rate of Change - The amount that the dependent variable changes compared with the amount that the independent variable changes. Also known as slope and constant of proportionality , Slope - direction and steepness of a line and usually represented by the variable m. also known as rate of change., Proportional Equation - y=kx, x=input value, y=output value, k= some constant that is not equal to 0., Proportional Table - Has a constant (of proportionality) relationship between x and y values., Constant of Proportionality - the constant ratio of one variable quantity to another to which it is proportional (also known as the unit rate), Negative Slope - a line that goes down from left to right, Positive Slope - a line that goes up from left to right,

Proportions and Linear Relationships

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