Question

Are these(4,1) 1,-3) (2,0) solutions to this graph?

Answer 1

(4,1) : no because the line is solid.
(1,-3) : yes because the line is not solid.
(2,0) : no because the line is solid.

Solid lines represent < or >, and if a point is on the line directly, it’s not included in the solution set.