GRAPH
In the inequality that has an open circle means
do not include that number
When parentheses is used, it means
do not include the number
In the graph, a closed circle means
include that number
When brackets are used it means
Include the number
In the graph, the arrow is going to the right means
The values are larger
When a graph shows values have a start and a finish,
the interval have parentheses or brackets with the start and finish numbers
In the graph, the arrow is going to the left means
The values are smaller
When a graph show the arrows are going in opposite directions, the interval would
have a negative infinity, the lesser value union the greater value and positive infinity
In the graph, the arrows are going opposite each other means
The values are representing slit values using "Or"
In an interval notation, the infinity symbol is only used
Only when the values are split with an "or"