#### Answer

$D$

#### Work Step by Step

RECALL:
(1) The graph of the equation of the form $x=a$ is a vertical line.
(2) The graph of the equation of the form $y=k$ is a horizontal line.
The given equation is in the form $x=a$ where $a=5$.
Thus, its graph is a vertical line.
Since $a$ is positive, then the vertical line is located to the right of the y-axis.
Therefore, the answer is Option D.