Answer:
A unit rate is the rate of change in a relationship where the rate is per 1. The rate of change is the ratio between the x and y (or input and output) values in a relationship. Another term for the rate of change for proportional relationships is the constant of proportionality.
Step-by-step explanation:the unit rate is the number represented by the ��. If a graph of a line passes through the origin and contains the point (1, r), r representing the unit rate, then the relationship is proportional.
