100 POINTS PLZ HELP ME

This graph shows a proportional relationship.




What is the constant of proportionality?


Enter your answer as a ratio in simplified form by filling in the boxes.


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A graph with a line running through coordinates left parenthesis 0 comma 0 right parenthesis and coordinates left parenthesis 1 over 4 end fraction comma 3 over 8 end fraction right parenthesis.