[tex]4x+8y=40[/tex]
Let's check every point:
[tex]\begin{gathered} (0,10) \\ 4(0)+8(10)=40 \\ 80=40 \\ False \end{gathered}[/tex]
This point is not on the line.
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[tex]\begin{gathered} (0,20) \\ 4(0)+8(20)=40 \\ 160=40 \\ False \end{gathered}[/tex]
This point is not on the line.
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[tex]\begin{gathered} (2,4) \\ 4(2)+8(4)=40 \\ 40=40 \\ True \end{gathered}[/tex]
This point is on the line
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[tex]\begin{gathered} (2,8) \\ 4(2)+8(8)=40 \\ 72=40 \\ False \end{gathered}[/tex]
This point is not on the line
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[tex]\begin{gathered} (10,0) \\ 4(10)+8(0)=40 \\ 40=40 \end{gathered}[/tex]
This point is on the line
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[tex]\begin{gathered} (20,0) \\ 4(20)+8(0)=40 \\ 80=40 \\ False \end{gathered}[/tex]
This point is not on the line
