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| Question 1011791:  I have one question that has three parts to it part A , Part B, and Part C
 part a is Can you give me your definition of Linear Equations?
 Part  B is there a formula for linear equations?
 Part C is how can i memorize how to solve for linear equations using statement and reason.
 Answer by MathLover1(20850)
      (Show Source): 
You can put this solution on YOUR website!  part a: An equation that makes a straight line when it is graphed. Often written in the form:
   what it means:
 
  = how far up 
  = how far along 
  = Slope or Gradient (how steep the line is) 
  = the y-intercept (where the line crosses the y axis) How do you find "
  " and "  "? 
 
  is easy: just see where the line crosses the  axis and you do it by setting  in given equation and solving for   
  (the Slope) needs some calculation: 
  which means if you are given two points that lie on a line and their coordinates are (  ,  ) and (  ,  ), then slope is 
   
 Example:
   
  =>  =>  => y-intercept is at (  ,  ) 
  =>   to graph it make a table for two points
 
  |   
  |  ...we already have it 
  |  .....choose any value for  and find the matching value for  ; if  then  =>   plot points and draw a line through
 
   
 
 Example: you might be given a graph like this
 
   and asked to find the equation of that line
   first what we see from the graph is that the line goes through origin; so, we know that
   so, your equation will be
  or just  and we need to find a slope   as you see from a graph, if
  that  and if  that   so, you have points
 (
  ,  )=(  ,  ) and
 (
  ,  )=(  ,  ) 
   
 then you can find the slope:
 
   
   
   
   
   and your equation is
   
 
 
 
 
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