Answer:
see the procedure
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form [tex]y/x=k[/tex] or [tex]y=kx[/tex]
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 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
[tex]L=120-x[/tex]
The equation not represent a proportional relationship, because the line not passes through the origin