Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
A linear relationship describes two variables that have an equal rate of change and can be represented by drawing straight lines when plotted on a graph.
Slope refers to how steep or flat a line is. It measures how much the y-value changes for every unit increase in x.
Direct Variation: A type of linear relationship where one variable is directly proportional to another, meaning their ratio remains constant.
Scatter Plot: A graph that displays individual data points as dots, showing the relationship between two variables and indicating if there is any correlation.