Solve the system by graphing. Y=2x-9 y=-2x-1
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:
(2,-5)
Step-by-step explanation:
See attachment
One can also solve this by calculation:
y=2x-9 
y=-2x-1
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Rearrange either equation to find x.  I'll use the first:
y=2x-9
2x = y+9
x = (y+9)/2
Now use this value of x in the second equation:
y =  -2x-1
y =-2((y+9)/2)-1
y = (-2y-18)/2)-1
y = -y -9 - 1
2y = -10
y = -5
Now use -5 for y in the rearranged equation:
y =  -2x-1
-5 =  -2x-1
-2x = -4
x = 2
Solution is (2,-5)
But the question wants a graph solution, which is also fun when you use DESMOS.
 
                                
             
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Answer:
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Step-by-step explanation:
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