Constant Rate of Change: Meaning, Formula and Examples
A constant rate of change means y changes by the same amount for each equal increase in x. Its value is the slope: m = (y₂ − y₁)/(x₂ − x₁), where x₂ ≠ x₁. For a linear function y = mx + b, m is constant. A positive rate means y increases, a negative rate […]
The Secret Decoder Ring of Proportional Relationships: How to Find The Constant of Proportionality
The constant of proportionality is the ratio of y to x in a proportional relationship, and it stays the same for every pair. Find it by dividing one output by its input, then check it against another pair. The examples below show the method in tables, graphs, and equations. Dive headfirst into the world of […]
