Answer:
The equation for the family of lines having y-intercept 8 is;
[tex]y=mx+8[/tex]Explanation:
We want to write the equation for the family of lines having y-intercept 8;
Given that y-intercept = 8
[tex]b=8[/tex]Recall that the slope intercept form of linear equation can be written in the form;
[tex]\begin{gathered} y=mx+b \\ \text{where;} \\ m=\text{slope} \\ b=y-\text{intercept} \end{gathered}[/tex]substituting the given y-intercept.
[tex]y=mx+8[/tex]Therefore, the equation for the family of lines having y-intercept 8 is;
[tex]y=mx+8[/tex]