Question 107065
Since {{{y=3x/4+2}}} and {{{y=-3x/4+2}}},

{{{3x/4+2=-3x/4+2}}}
{{{3x/4+2-2=-3x/4+2-2}}}
{{{3x/4+0=-3x/4+0}}}
{{{3x/4=-3x/4}}}
{{{4(3x/4)=4(-3x/4)}}}
{{{3x=-3x}}}
{{{3x+3x=-3x+3x}}}
{{{6x=0}}}
{{{6x/6=0/6}}}
{{{x=0}}}

Solving for y,

{{{y=3x/4+2}}}
{{{y=3*0/4+2}}}
{{{y=0/4+2}}}
{{{y=0+2}}}
{{{y=2}}}

GRAPH:

{{{graph(1000,1000,-20,20,-20,20,-3x/4+2,3x/4+2)}}}


Look! They intersect at (0,2). This means that both solutions (algebraic and graphical) are correct!


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