Question

Choose the point which is a solution to the system of inequalities:

y –x + 7
y < 3x + 11

Answer 1

x=7-y from first equation
y<3(7-y)+11
y<-3y+32
4y=32, y=32/4=8 and x can be solved using x=7-y so
x=7-8=-1 therefore the solution to this set is at the point
(-1,8)

Answer 2

You didn't post the points. But do it just like in the other problem you posted. Plug the points into the inequalities and see when they're both true.