Answer + Step-by-step explanation:
This is a three degree function
(by the image A and B can't be right)
 
        
             
        
        
        
Step-by-step explanation:
by using similarity and enlargement
10/8 = 7+y/7
70=56+8y
8y=14
y= 7/4
10/8 = 5+x/5
50=40+8x
x = 8/10 = 4/5
 
        
                    
             
        
        
        
Answer:
 
    and
 and 
Step-by-step explanation:
Given
See attachment for complete question
Required
Determine the equilibrium solutions
We have:


To solve this, we first equate  and
 and  to 0.
 to 0.
So, we have:


Factor out R in 

Split
 or
   or 
 or
   or  
Factor out W in 

Split
 or
 or 
Solve for R


Make R the subject


When  , we have:
, we have:




Collect like terms

Solve for W




When  , we have:
, we have:



Collect like terms

Solve for R


So, we have:

When  , we have:
, we have:





So, we have:

Hence, the points of equilibrium are:
 
    and
 and 
 
        
             
        
        
        
9514 1404 393
Answer:
   C.  (-4, -3)
Step-by-step explanation:
The point where the lines cross is the solution to both equations. That point is in the third quadrant, where both coordinate values are negative.
The x-coordinate of the point is listed first, so the solution is ...
   (x, y) = (-4, -3)