This document discusses a limit problem and its relationship to a graph of the COVID-19 pandemic. The limit of the function 2x+1 as x approaches 4 equals 9. On the graph of the function, the point (4,9) lies on the curve, where the x-value of 4 intersects with a y-value of 9. Similarly, the graph of COVID-19 deaths in 2020 shows the number of deaths approaching a point as time (the x-axis) increased, relating the mathematical limit to the real-world trend of the pandemic.