Question

which point is not a solution of y < -3 ?

Answer 1

1,-4
3,0
-2,-5 ?

Answer 2

Insert the values of y and see which one satisfys the inequality.

Answer 3

3,0

y < -3 is going to contain all values less than -3. You can draw a horizontal line at y = -3, and if a point is not below that line, then it is > -3. The point (3,0) is above that line.