Question

What is the constant of proportionality in the equation y = StartFraction x over 9 EndFraction?
0
StartFraction 1 over 9 EndFraction
StartFraction 8 over 9 EndFraction
1

Answer 1

In the equation \( y = \frac{x}{9} \), we can rewrite it in the form \( y = kx \), where \( k \) is the constant of proportionality.

In this case, \( k \) can be identified as:

\[
k = \frac{1}{9}
\]

Thus, the constant of proportionality is \( \frac{1}{9} \).

The correct answer is:

**StartFraction 1 over 9 EndFraction**