Which of the following statements is NOT true?

The rate of change and the constant of proportionality are the same value in a proportional relationship.
The rate of change and the constant of proportionality are the same value in a proportional relationship.

The value of and the value of are different in a proportional relationship.
The value of and the value of are different in a proportional relationship.

A proportional relationship is a linear relationship.
A proportional relationship is a linear relationship.

The unit rate and the k-value are the same value in a proportional relationship.