the midline of the graph is the horizontal line that divides the graph in half.
to find it we can take the maximum value and the minimum and substract them together to find the total distance and divide it by 2 to find the halfpoint
the maximum value is 5.2 and the minimum is 2.02
[tex]\frac{5.2-2.02}{2}=1.59[/tex]
the halfpoint will be at a 1.59 unit from the maximum value and the minimum value
[tex]\begin{gathered} 5.2-1.59=3.61 \\ 2.02+1.59=3.61 \end{gathered}[/tex]
the midline of the graph will be at y=3.6
