Answer:
The answer is in the attachment.
Step-by-step explanation:
When x is much greater than 0 then 4/x tends to 0 and y =2x + 4/x + 1 tends to y =2x + 1.
For example, for x = 100:
When x aproximates to 0 then 4/x tends to ∞ and y =2x + 4/x + 1 tends to ∞ .
For example, for x = 0.001:
When x = 0 then 4/x have no solution because a number can not be divided by 0 and you have a discontinuity in this function at this point .