The given equation is,
[tex]y=-3x+7[/tex]For value of x=0,
[tex]\begin{gathered} y=-3(0)+7 \\ =7 \end{gathered}[/tex]For value x=1,
[tex]\begin{gathered} y=-3(1)+7 \\ =4 \end{gathered}[/tex]For the two points (0,7) and (1,4), the graph can be plotted as,
The red line is the required line for the given equation.