Answer:
 See step by step
Step-by-step explanation:
1. First question, do they represent functions? The one o. the left is a function because if you do the vertical line test. It only passes through a point once so it is a function. while on the right if you do the vertical line test, it passes through a point twice so it not a function. For 2.. n other words, since the domain of this equation is all real numbers or negative infinity to positives infinity
let say x=1 and x=-1 and we use the equation 

when we plug both those in we get

this means that we can have two different x-values to equal out to the same y value. This is the definition of a function. So the one on the right is a function. 
However the one on the left is a relation. TO Prove it, the domain of that function is all real numbers equal to or greater than zero, so let use 4. 


Since there are 2 possible answer choices as the y value, this isn't a function. It a relation. It maps a group of ordered sets to one x value. Which is the opposite of the function. So the one of the left is a relation
 
        
             
        
        
        
Y>3 only rules out B.  B,D,E,F all satisfy 2x<y.  So
ANSWER: D E F
        
             
        
        
        
Answer: The answer is y= -6/7x+1
 
        
             
        
        
        
Answer:  6 or -6
hello,
Step-by-step explanation:
Let say n the number
