Step-by-step:
I found your worksheet online of which explains more in detail the assignment. The rumor starts with 3 people and doubles each day that it spreads.
The formula for exponential growth is [tex]ab^{x}[/tex].
You can plug your formula into the equation to get [tex]2\times 3^{x}[/tex]
an alternative way to answer plug that formula into desmos graphing calculator and draw what shows up there under the question.
I will reply to my answer a psychological reason for this to happen too for my own entertainment.
