We need to write the equation of a line whit slope = 2 and y-intercept = 1/2
The general form of a line is:
[tex]\begin{gathered} y=mx+b \\ \text{where m is the slope and b is the y-intercept value.} \\ In\text{ this case we have m=2 and b=}\frac{1}{2}\colon \\ y=2x+\frac{1}{2} \end{gathered}[/tex]