To find the constant of proportionality for the points you provided (14:21 and 28), we need to identify the relationship between these values.
The constant of proportionality (k) can be found by using the formula:
\[ k = \frac{y}{x} \]
where \( y \) is the value on the y-axis and \( x \) is the value on the x-axis.
For the first point (14:21):
\[ k_1 = \frac{21}{14} = 1.5 \]
For the second point (28), we don't have the corresponding y-value, so we cannot compute \( k \) directly unless you provide it. However, if the pattern remains consistent based on the first point, we can use the same constant of proportionality to make predictions about other values.
If you are asking for any specific information or have other points to evaluate, please share them!