The equation that has a constant of proportionality equal to 1 is y = x
Which equation has a constant of proportionality equal to 1?
The general proportional equation between two variables x and y is written as follows:
y = k*x
Where k is the constant of proportionality that relates both of these functions.
So, if we have a constant of proportionality equal to 1, there is the parent linear function:
y = x
This is the only equation with a constant of proportionality equal to 1