Question 1094324
No restrictions  on domain and no restrictions on range.

{{{y-2y=3x}}}
{{{-y=3x}}}
{{{y=-3x}}}


degree 1 for both x and for y.
An equation for a LINE.
the line is NOT vertical.


<b>Every x has exactly 1 value for y.</b>


YES, the relation is a function.