ANSWER
![\begin{gathered} 1)\text{ Undefined} \\ \\ 2)\text{ }3 \\ \\ 3)\text{ }2.4 \\ \\ 4)\text{ }5 \\ \\ 5)\text{ }2+(1)/(a) \end{gathered}]()
Step-by-step explanation
We want to find the value of y:

for the values of x.
To do this, for each value of x, substitute the values of x into the equation and simplify.
1. x = 0:
![\begin{gathered} y=(2x+1)/(x) \\ \\ y=(2(0)+1)/(0)=(0+1)/(0)=(1)/(0) \\ \\ y=\text{ Undefined} \end{gathered}]()
The value of y is undefined for x = 0 since any value divided by 0 is undefined.
2. x = 1:

3. x = 2.5:

4. x = 1/3:

5. x = a:

That is the answer.