Answer:
not true 
Step-by-step explanation:
i just wants points mate 
 
        
             
        
        
        
X could either be 4 or 5, depending on which x the question asks. If you have to chose one answer go with 5 because it's associated with the y.
 
        
        
        
Answer:
#5 x=8, #6 x=5
Step-by-step explanation:
Theyre vertical so for number 5 you would have the equation
5x+15=55
     -15   -15 from both sides
5x=40
divide by 5 from both sides and you get
x=8 
Same thing vertical so you would have   
16x+7=87
     -7    -7 from both sides
16x=80
divide by 16 from both sides
x=5
 
        
             
        
        
        
Try this option (it is not the only way):
the points (0;0) and (2;2) belong to the curve. Using the coordinates of these points it is possible to calculate the equation.
