Question 176581
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Line Eqn's:
{{{x - 3y = 9 }}} , EQN 1
{{{5x - 15y = 45 }}},divide the whole eqn by 5
{{{(5x/5)-(15y/5)=45/5}}}
{{{x-3y=9}}}, EQN 2=EQN1
Via Slope-intercept Form: {{{y=mx+b}}}
{{{3y=x-9}}}--->{{{cross(3)y/cross(3)=(x-9)/3=(1/3)x-(9/3)}}}
{{{y=(1/3)x-3}}}---> Line eqn.
{{{f(y)=0}}}
{{{(1/3)x=3}}}
{{{highlight(x=9)}}}
{{{f(x)=0}}}
{{{highlight(y=-3)}}}
{{{drawing(300,300,-10,12,-6,6,grid(1),graph(300,300,-10,12,-6,6,(1/3)x-3,(1/3)x-3),blue(circle(9,0,.25)),blue(circle(0,-3,.25)))}}}
Thank you,
Jojo</pre>