How do i know how the interval notiation set will be? I have attached a graph for an example =)
like
(5,-3] or is it [-3,5) plus i am confused with the brackets [ ( )]
It's (-3, 5]. The smaller value (taking the sign into account) must be on the left. The parentheses ( and ) correspond to strict inequalities < and >, while square brackets [ and ] correspond to non-strict inequalities and .