Question 661712


{{{3x-y=9}}}

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

first write them in {{{slope-intercept}}} form

{{{3x-y=9}}}

{{{y=3x-9}}}.....so, we see that a slope is {{{3}}}


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

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

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

{{{ y=3x-1}}}...........we see that this line has a slope {{{3}}} too

if two lines have same slope, they are {{{parallel}}}

let's see it on a graph

 {{{ graph( 600, 600, -10, 10, -10, 10, 3x-9, 3x-1) }}}