The equation $$ y=5.5 x $$ represents a proportional relationship. What is the constant of proportionality? A. $$ x $$ B. $$ y $$ C. 5.5 D. $$ \frac{1}{5.5} $$

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In a proportional relationship of the form $$ y = kx $$, the constant of proportionality is the value that relates $$ y $$ directly to $$ x $$. Here, $$ k $$ represents the constant that remains the same as $$ x $$ and $$ y $$ change proportionally.

Given the equation:
$$ y = 5.5x $$

- **$$ k = 5.5 $$**

This means that for every unit increase in $$ x $$, $$ y $$ increases by 5.5 units. Therefore, the constant of proportionality in this equation is **5.5**.

**Answer:**  
C. $$ 5.5 $$
The constant of proportionality is 5.5.

The equation represents a proportional relationship. What is the constant of proportionality?
A.
B.
C. 5.5
D.

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The equation represents a proportional relationship. What is the constant of proportionality? A. B. C. 5.5 D.