Question 175775
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We have Line eqn's:
{{{y + 2x = -1}}}, eqn 1
{{{y - 4 = -2x}}}, eqn 2
Following Slope-Intercept form, {{{y=mx+b}}}
In eqn 1:
{{{y=-2x-1}}}----> {{{slope=-2}}},{{{yIntercept=-1}}}
In eqn 2:
{{{y=-2x+4}}}---->{{{Slope=-2}}},{{{yIntercept=4}}}
Above eqns have the same Slope, so they should be parallel. Let's see:
{{{drawing(300,300,-6,6,-6,6,grid(1),graph(300,300,-6,6,-6,6,-2x-1,-2x+4))}}} --->Red Line, eqn 1; Green Line, eqn 2
Thank you,
Jojo</pre>