Question 462949
<pre>
3y = 18

We want to get it in the form

 y = mx + b

Divide both sides by 3 to solve for y

3y = 18
 y = 6

Now there is no "mx" term but we can insert "0x"
without changing the value, so we do that:

 y = 0x + 6

Now we can compare that with

 y = mx + b

and we see that m = 0, so the slope is 0.

That means the line is horizontal:

{{{drawing(400,400,-10,10,-10,10, 
graph(400,400,-10,10,-10,10),
green(line(-11,6,11,6)) )}}}

Edwin</pre>