Hello,

Is there a simpler way of locating whether any of the points (-3,-2), (-1,-2), (1,-2), (3,-2) are below both these lines?

2x-y=4 and x+2y=-3

I'm just substituting each and every x value of the points in and seeing whether the answer's y value is below the equation's y value.

Is there a simpler way than substitution or graphing (I can't use graphs here)?