SOLUTION: Please help me solve this equation. Change the equation,x-y=4 to the form y=mx+b. Thank you!

Algebra ->  Linear-equations -> SOLUTION: Please help me solve this equation. Change the equation,x-y=4 to the form y=mx+b. Thank you!      Log On


   

Question 127302: Please help me solve this equation.
Change the equation,x-y=4 to the form y=mx+b.
Thank you!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

x-y=4 Start with the given equation


-y=4-x Subtract +x from both sides


-y=-x%2B4 Rearrange the equation


y=%28-x%2B4%29%2F%28-1%29 Divide both sides by -1. Remember, -y really looks like -1y


y=%28-1%2F-1%29x%2B%284%29%2F%28-1%29 Break up the fraction


y=x-4 Reduce



So the equation is now in slope-intercept form (y=mx%2Bb) where the slope is m=1 and the y-intercept is b=-4