Draw a figure showing congestion window Size as a function of transmission round (time) and briefly describe how does the slow start algorithm work?

Draw a figure showing congestion window Size as a function of transmission round (time) and briefly describe how does the slow start algorithm work? From the figure do the following tasks:

 • Identify the interval of time when TCP slow start in operating.
 • Identify the interval of time when TCP congestion avoidance is operating. 
• What is the value of the threshold?