Answer
The interval notations changes from
$$(−∞,6]∩(2,10)$$
to
$$(2,6]$$
Work Step by Step
In the interval notation we noticed bracket an parenthesis
Bracket means close circle
Parenthesis means open circle
(−∞,6]∩(2,10)
the symbol ∩ means all the common elements between these interval notations.
1. The commomn elemnts are $(2,3,4,5,6]$
2. $2$ will not be included because for intersection the number needs to be in both sets and 2 is not included in the set (2,10).
3. 6 is included because it is included in both sets.
2. The line will go from 2 (open circle) to 6 (close circle•)
