Answer :
Since the growth was linear, we can represent it using a linear equation, which can be expressed as below:
[tex]y=m\cdot x+b[/tex]Where m is the slope of the line and b is the value at which it crosses the y-axis. If we consider that 2019 is the year 0, then b will be the population at 2019. To find the value of m, we need to use the following equation:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Where (x1,y1) and (x2,y2) are known points. For our case, we have (2019, 103126) and (2020, 103856).
[tex]\begin{gathered} m=\frac{103856-103126}{2020-2019} \\ m=\frac{730}{1}=730 \end{gathered}[/tex]The linear growth rate is equal to the slope, therefore it is equal to 730.
