Question

Without Graphing, Is The System Independent, Dependent, Or Inconsistent? (Equations And Answer Choices Are In Comments!)

Answer 1

Rewrite 4 so we can see if they have the same slope:
$$
y=-2x-9\\
y=\cfrac{3x+8}{4}=\cfrac{3}{4}x+\cfrac{8}{4}
$$
These equations have different slopes so they are not parallel and will intersect somewhere, which means they are independent.



Now you try 5.