Answer:
y = -2x + 4
Step-by-step explanation:
When given a slope, and y intercept, this means the question is asking us to write the equation in slope-intercept form, which is y = mx + b. 
Plug in the values. 
y = -2x + 4
 
        
             
        
        
        
3(x+y)=y
y is not equal to zero
*Solution  
1. The given equation is 3(x+y) = y and we are tasked to find the ratio between x and y. Distributing 3 to the terms in the parenthesis,  
                        3(x+y) = y
                      3x + 3y = y
Transposing 3y to the right side OR subtracting 3y from both the left-hand side and the right-hand side of the equation would give
                              3x = -2y
Dividing both sides of the equation by 3,  
                                x = (-2/3)y
Dividing both sides of the equation by y,  
                              x/y = -2/3
Therefore, the ratio x/y has a value of -2/3 provided that y is not equal to zero.  
                              
 
        
             
        
        
        
Answer:
By virtue of the Pythagorean Theorem, in a right triangle the sum of the squares of the smaller two sides equals the square of the largest side. Only 9, 12, and 15 fit this rule.
 
        
             
        
        
        
Answer: Weird
Step-by-step explanation: Maybe calculate all the numbers I guess.