A proportional relationship can be said to be a relationship between two variables with equivalent ratios. Here the two variables vary directly with each other.
Thus, using the equation:
y = kx
where k is the constant
Here, we have:
d = 65t
where 65 is the constant of proportionality
We can say d varies directly as t
Therefore d = 65t is proportional.
ANSWER:
Proportional