SOLUTION: This is 1 question with a 2 Parts. On a graph that has a system of equations of 8x - 7y = 49 -8x + 7y = -49 Is the system consistent or incosistent? Are the equations dependen

Algebra ->  Graphs -> SOLUTION: This is 1 question with a 2 Parts. On a graph that has a system of equations of 8x - 7y = 49 -8x + 7y = -49 Is the system consistent or incosistent? Are the equations dependen      Log On


   

Question 164252: This is 1 question with a 2 Parts.
On a graph that has a system of equations of
8x - 7y = 49
-8x + 7y = -49
Is the system consistent or incosistent?
Are the equations dependent or independent?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Simply add the equations together to get: 


   8x - 7y = 49
+ -8x + 7y = -49
-----------------
   0x + 0y = 0 
         0 = 0


Since the equation is ALWAYS true, this means that the system is consistent and dependent. In other words, there are an infinite number of solutions.