Answer
please see image:
Work Step by Step
In the given equation, there is no term containing y.
This equation is not an equation representing y as a function of x.
It can not be written in the form $y=mx+b$,
its slope is undefined
The equation is linear so it does represent a line.
Dividing the equation by 3 we obtain
$x=-\displaystyle \frac{7}{2}$
meaning that any point that has x-coordinate $-\displaystyle \frac{7}{2}$ lies on this line.
This line is vertical (parallel to the y-axis), and passes through
$(-\displaystyle \frac{7}{2},0)$
