All of the above.
To check if an ordered pair is a solution to the inequality, plug in the ordered pair into the inequality and see if the inequality checks out.
[tex]y<x+12[/tex]
(-2,5)
[tex]5<-2+12[/tex]
[tex]5<10[/tex]
So this ordered pair works.
(0,1)
[tex]1<0+12[/tex]
[tex]1<12[/tex]
So this ordered pair works as well.
(15,0)
[tex]0<15+12[/tex]
[tex]0<27[/tex]
So this ordered pair works.
(-5,0)
[tex]0<-5+12[/tex]
[tex]0<7[/tex]
So this ordered pair works as well.
