Question 1138066
<pre>
what does the line 5 x + 4
 y = -6 looks like?
</pre>
What line or lines?  Which?
That shows an expression, and then an equation of ONE line.

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Your first expression by itself, is just an expression:  {{{5x+4}}}.  Is this supposed to be equal to something?  If it is, then to what?


Your second part is a statement,  {{{y=-6}}}, which is a horizontal line.  This will look like graph
{{{graph(300,300,-5,5,-8,2,-6)}}}.