Answer:
One of it culd be -3 or 3
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
-0.924
Step-by-step explanation:
The magnitude of the correlation coefficient is the square root of the variation.
|r| = √0.854
|r| = 0.924
The sign of the correlation coefficient is the same as the slope of the line of best fit.  In this case, it's negative.
r = -0.924
 
        
             
        
        
        
Answer: 21.375 cm2
Step-by-step explanation:
Area of rectangle  = length x width = 3.5 x 4.4 = 15.75 cm2
Area of triangle = 1/2 x base x height = 1/2 x 2.5 x 4.5 = 5.625 cm2 
Add rectangle and triangle area = 21.375 cm2
 
        
                    
             
        
        
        
Through any three points there never exists exactly one line. Hope this helps! Any questions about my answer feel free to ask in the comments below!
        
             
        
        
        
Answer:
y-intercept: (0,0)
Step-by-step explanation: