Question 217789
Use the intercept method to graph x-y=3.


Step 1.  Intercepts occur when one of the coordinates is equal to 0.  So the y-intercept occurs at x=0 and the x-intercept occurs at y=0.


Step 2.  It takes two points to make a line.  So use these intercepts points


Step 3.  When x=0, then 0-y=3 or y=-3.    So we have point (0,-3).


Step 4.  When y=0, then x-0=3 or x=3.  So we have another point (3,0).


Step 5.  Graph the line as shown below using these two points found in Steps 3 and 4.


{{{graph(400,400,-5,5,-5,5, x-3)}}}


Note x-y=3 can be written as y=x-3 in slope-intercept form where slope m=1 and y-intercept b=-3.


I hope the above steps were helpful. 


For free Step-By-Step Videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra or for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.


And good luck in your studies!


Respectfully,
Dr J

drjctu@gmail.com

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