To draw the graph we must find at least two points on them
[tex]y=-6x+8[/tex]Substitute x by 0 and find y
[tex]\begin{gathered} y=-6(0)+8 \\ y=8 \end{gathered}[/tex]The first point is (0, 8)
Substitute x by 1
[tex]\begin{gathered} y=-6(1)+8 \\ y=-6+8 \\ y=2 \end{gathered}[/tex]The 2nd point is (1, 2)
Now we can draw the graph
You can see the two points (0, 8) and (1, 2)