Question 1205904
<pre>
Yes, she made a sign error, like I'm prone to do.

{{{3x-2=x-y+6}}}

{{{3x-2-x-6=cross(y)}}}

She missed the sign of y right there.  It was already negative on the right side.

It should have been

{{{3x-2-x-6=-y}}}


{{{-y=2x-8}}}

So she should have has

{{{y=-2x+8}}}

slope: {{{-2}}}
y-intercept: {{{8}}}
x-intercept:{{{0=-2x+8}}}=>{{{-8=-2x}}}=>{{{x=4}}}

{{{ graph( 600, 600, -10, 10, -10, 10, -2x+8) }}} 

Edwin</pre>