Linear relationship — definition?
A pattern where data points form a straight line.
Constant rate of change — role?
Indicates a uniform change in output per input unit.
Slope — interpretation?
Shows how much output changes per input unit.
Input-output change — mechanism?
Output varies proportionally with input changes.
Linear model — appropriateness?
Suitable when data shows a constant rate of change.
Graph of linear relationship?
A straight line on a coordinate plane.
Slope as rise over run?
Vertical change divided by horizontal change.
Input-output change — key?
Describes how output responds to input variations.
Linear model — key criterion?
Data exhibits a constant rate of change.
When not linear?
When the rate of change varies across data.
Test your knowledge with 5 questions on Understanding Linear Relationships and Change.
1. What is a linear relationship?
2. What is the term used to describe the unchanging ratio of change in output to change in input in a linear relationship?
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