Answer:
No
Step-by-step explanation:
the graph fails the vertical line test
 
        
             
        
        
        
Answer: 
Step-by-step explanation:

Since our ''y'' is already isolated, you can simply plug ''y'' information into the second equation.

Now we can use the first equation and replace ''x'' to find ''y''

To prove that your values are correct, take any of the equations and replace their values.

 
        
                    
             
        
        
        
Answer:
35 minutes
Step-by-step explanation:
 
        
                    
             
        
        
        
Sorry if it’s a bit messy. hopefully i could help!!
 
        
        
        
Put the x on one side 
2x+7=x+11
-x      -x
x+7=11
Then subtract
x+7-7=11-7
x=4
Hope it helps!!