Which graph represents y=⌈x⌉ over the domain 3≤x≤6 ?

Answer:The third graph (left of the bottom) represents  [tex]y=\left \lceil x \right \rceil[/tex]over the domain 3≤x≤6.
Step-by-step explanation:The Least Interger Function is represented by [tex]y=\left \lceil x \right \rceil[/tex].The least integer function is a discontinuous function whose value at any number x is the smallest integer greater than of equal to x .It is denoted by  [tex]\left \lceil x \right \rceil[/tex].and It is also known as ceiling of x.  For example[tex]\left \lceil3.4\right \rceil=4,\left \lceil5.6\right \rceil=6. \left \lceil4.4\right \rceil=5[/tex]So the third graph (left of the bottom) represents  [tex]y=\left \lceil x \right \rceil[/tex]over the domain 3≤x≤6. [we can see all the value of x starting from 3 pointed at y=3 and for x≤ 4 are converging to y=4 which is represented by solid dot  and so on ... ]