Answer:

Step-by-step explanation:
Given
The attached plot
Required
The line of the best fit using  and
 and 
We have:


Calculate slope (m)




The equation is then calculated using:


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Answer:
 x = -7 or  x = 1 
Step-by-step explanation:
Given expression: 
     (x + 3)²  = -16 
  
Problem;
    Solve for x;
Solution: 
  To solve for x; we use the factorization method;
      Take -16 to the left of the equation;
       (x + 3)²  = -16
          (x + 3)² + 16 = 0
        (x+ 3)² + 4²  = 0 
if    x² + y²  = (x + y)(x - y)
      So;
        (x + 3 + 4) (x + 3 - 4) = 0
        (x + 7)(x - 1) = 0
        x + 7  = 0 or x - 1 = 0
        x = -7 or  x = 1 
 
        
             
        
        
        
Answer:
40404
Step-by-step explanation:
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Answer:
25
Step-by-step explanation:
 
        
             
        
        
        
Answer:
5/9
Step-by-step explanation: