Question 127302

{{{x-y=4}}} Start with the given equation



{{{-y=4-x}}}  Subtract {{{ x}}} from both sides



{{{-y=-x+4}}} Rearrange the equation



{{{y=(-x+4)/(-1)}}} Divide both sides by {{{-1}}}. Remember, {{{-y}}} really looks like {{{-1y}}}



{{{y=(-1/-1)x+(4)/(-1)}}} Break up the fraction



{{{y=x-4}}} Reduce




So the equation is now in slope-intercept form ({{{y=mx+b}}}) where the slope is {{{m=1}}} and the y-intercept is {{{b=-4}}}