Answer:
0.5
Explanation:
To determine the constant of proportionality, we pick two points on the graph.
When x=0, y=0
When x =1, y=0.5
[tex]\begin{gathered} \text{Slope, m=}\frac{0.5-0}{1-0} \\ =0.5 \end{gathered}[/tex]
The constant of proportionality is 0.5
