The general graph of equation is:
[tex]y=kx[/tex]
Where k is proportionality then:
k is:
[tex]\begin{gathered} k=1\frac{1}{4} \\ k=\frac{4+1}{4} \\ k=\frac{5}{4} \end{gathered}[/tex]
So graph of equation is :
[tex]\begin{gathered} y=kx \\ y=\frac{5}{4}x \end{gathered}[/tex]
so graph is:
