Which graph represents a proportional relationship between x and y?

Question

A. A straight line passing through the origin (0, 0).
B. A straight line that does not pass through the origin.
C. A curved line passing through the origin.
D. A scatter plot with no clear pattern.

Answer 1

The correct answer is:

A. A straight line passing through the origin (0, 0).

A proportional relationship is characterized by a constant ratio between x and y, which is represented graphically by a straight line that passes through the origin. Options B, C, and D do not represent proportional relationships.