[tex] y =\frac{10}{11}x \rightarrow \frac{10}{11}[/tex]
[tex] y=\frac{7}{8}x \rightarrow \frac{7}{8}[/tex]
[tex] y = \frac{3}{15} \rightarrow \frac{1}{5} [/tex]
[tex] y = x \rightarrow 1 [/tex]
From the information given above, D is the answer which has a constant proportionality equal to 1.
