The given graph is represented by the function
[tex]f(t)=4.3^t[/tex]
The y-intercept occurs where the graph cuts the x-axis. At this point, the x-axis is 0.
In this case, the x-axis represents the year (t) the trading card was purchased.
Hence, from the graph at t = 0, the trading card was worth $4
Therefore, the correct option is C.
When it was purchased (year 0) the trading card was worth $4
