3. The graph shows the distance \( x \) Yazmin jogs and the amount of time \( y \) that it takes her.
A. What is the meaning of the point \( ( 1,16 ) \) on the graph?
B. Does the graph show a proportional relationship? If so, what is the constant of proportionality \( k \) ? What is the equation of the graph? Explain your reasoning.