What is a proportional relationship between x and y?
Understand the Problem
The question is asking about the concept of a proportional relationship between two variables, x and y. This typically means that as one variable changes, the other variable changes in a consistent way, often described by the equation y = kx, where k is a constant. The relationship can be visualized as a straight line that passes through the origin in a graph.
Answer
A proportional relationship is represented by y = kx.
A proportional relationship between x and y means that y is equal to a constant (k) times x, represented by the equation y = kx.
Answer for screen readers
A proportional relationship between x and y means that y is equal to a constant (k) times x, represented by the equation y = kx.
More Information
In a proportional relationship, as one variable changes, the other changes at a constant rate, maintaining a fixed ratio.
Tips
Remember that in a proportional relationship, the line on a graph will always pass through the origin (0,0).
Sources
- Representing Proportional Relationships by Equations - study.com
- Proportional Relationships - Varsity Tutors - varsitytutors.com
