Answer: see the procedure
we know that
A relationship between two variables, x, and y, represents a proportional variation if it can be expressed in the form or
In a proportional relationship, the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
we have
The remaining length (L) of the 120-inch rope after x inches have been cut off
we have
L ---> is the dependent variable (output variable)
x ---> the independent variable (input variable)
The linear equation is
The equation does not represent a proportional relationship, because the line does not pass through the origin
Explanation: