one easy way is first solve for y
3x-5y=9
minus 3x both sides
-5y=-3x+9
divide both sides by -5
y=[tex] \frac{3x-9}{5} [/tex]
so
if x=-1
y=[tex] \frac{3(-1)-9}{5} [/tex]
y=[tex] \frac{-3-9}{5} [/tex]
y=[tex] \frac{-12}{5} [/tex]
if x=0
y=[tex] \frac{3(0)-9}{5} [/tex]
y=[tex] \frac{0-9}{5} [/tex]
y=[tex] \frac{-9}{5} [/tex]
if x=1
y=[tex] \frac{3(1)-9}{5} [/tex]
y=[tex] \frac{3-9}{5} [/tex]
y=[tex] \frac{-6}{5} [/tex]
