chapter 3
definitions
Constant of Proportionality- a proportional relationship can be described by an equation of the form y=kx, where k is a number that stays constant or does not change.
Proportional Relationship- a relationship between two quantities in which the ratio of one quantity to the other quantity is constant.
Rate of Change- is a ratio of the amount of change in the dependent variable, or output, to the amount of change in the independent variable, or input.
Slope- the slope of a line is the ratio of the change in y-values (rise) for a segment of the graph to the corresponding change in x-values (run).
Unit Rate- a rate in which the second quantity in the comparison is one unit.
Proportional Relationship- a relationship between two quantities in which the ratio of one quantity to the other quantity is constant.
Rate of Change- is a ratio of the amount of change in the dependent variable, or output, to the amount of change in the independent variable, or input.
Slope- the slope of a line is the ratio of the change in y-values (rise) for a segment of the graph to the corresponding change in x-values (run).
Unit Rate- a rate in which the second quantity in the comparison is one unit.