Graph in Option D satisfies Proportional Relationship.
What is Proportional Relationship ?
The relationship between two variables such that on increase of one variable the other also increases by some proportion.
It is represented by
y∝ x
y = kx
where k is the proportionality constant
The graph should pass through origin to show a proportional Relation
and should have same proportionality constant through out
Option D satisfies both the condition with k = 0.5.
Therefore Option D is the correct answer.
To know more about Proportional Relationship
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