How do I do this?
I really need help and I don’t understand

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?