Answer:
![y(t) =x(t+0.3s)](https://img.qammunity.org/2020/formulas/mathematics/college/v9havcr3y28vbqb67rqvoke26uhtgpb47f.png)
Explanation:
Define the function y(t) to be x(t) delayed by 0.3 seconds.
To interpret that we can say that y at time t take the value of x at time (t+0.3s).
So we can write
![y(t) =x(t+0.3s)](https://img.qammunity.org/2020/formulas/mathematics/college/v9havcr3y28vbqb67rqvoke26uhtgpb47f.png)
The graph relates X(t) and Y(t) for t=0.3 to t=4.0. There is a linear relation between the X and Y because the slope Y/X is a constant.