Respuesta :

2y-3x≤-10
just insert your points into it:

a: 2*2-3*-4<=-10?
4+12<=-10? no

b: 2*3-3*1<=-10?
6-3<=-10? no

c: 2*-4-3*2<=-10?
-8-6<=-10?
yes c is a solution: -14<=-10

d: 2*4-3*4<=-10?
8-12<=-10? no