We can observe that the function describing the graph is linear and so the equation is of linear nature:

Numbers m and n have special names. m is called the slope, n is called y-intercept.
From the graph one can tell that the line intercepts y-axis at y = -1 that means n = -1. What about the slope you say?
The slope can be calculated using two points' coordinates that lie on the line:

Now our line has an equation,

Hope this helps.
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
12+2+8+6+57=85
85/5= 17
mean=17
        
                    
             
        
        
        
Yea what she said was correct