The line passes through (0,1) and (2,3).
Using the two point form the equation of line can be determined as,
[tex]\begin{gathered} \frac{y-1}{x-0}=\frac{3-1}{2-0} \\ y=x+1 \end{gathered}[/tex]The value of y when x=3.5 can be determined as,
[tex]\begin{gathered} y=3.5+1 \\ y=4.5 \end{gathered}[/tex]Thus, the requried value of y is 4.5.
