G^2-4g+6
# Terms: 3, (g^2), (-4g), (6)
Variable: g
Constant: 6
You can tell if two fractions are proportional by cross multiplying the fractions. If the fractions are equivalent, then they are proportional. If they are not equivalent, they are not proportional.
Answer:
the 2 one is a linear and the rest are non
