The general exponential growth formula is:
[tex]y=a\cdot b^x^{}[/tex]
where a is the initial amount, b is the growth multiplier, and y and x are the variables.
In this case, x represents years after 2015, y represents the number of students, and the initial value is a = 20,080.
Substituting with y = 20,582 when x = 1, we get:
[tex]\begin{gathered} 20,582=20,080\cdot b^1 \\ \frac{20.582}{20,080}=b \\ 1.025=b \end{gathered}[/tex]
Now, we can complete the table as follows:
[tex]\begin{gathered} x=2 \\ y=20,080\cdot1.025^2=21097 \\ x=3 \\ y=20,080\cdot1.025^3=21624 \\ x=4 \\ y=20,080\cdot1.025^4=22165 \end{gathered}[/tex]
Expressing the exponential growth formula with the rate of growth r:
[tex]y=a(1+r)^x^{}[/tex]
where b has been replaced by 1 + r. This means that r = 0.025, which expressed as a percent is 0.025*100 = 2.5% growth