Answer:
It is a proportional. It is special called direction proportional.
Explanation:
It is a linear relationship and it is a direction proportional.
The direction proportional is in the form y = kx, where k is a constant.
If x increases/decreases, then the value of y also increases/decreases. This is called direct proportional.
Here the value of k = 1 over 2.
This is also in the linear form y = mx + b, where "m" is the slope and b is the y-intercept.
The linear equations always a direct proportional.