Answer:
I think The answer is ( -10, 10 )
 
        
             
        
        
        
Answer:
as long as a pizza crust
Step-by-step explanation:
yuh yuh yuh yuh yuh yuh
 
        
             
        
        
        
Answer: please clarify
Step-by-step explanation:
 
        
                    
             
        
        
        
Equation of an ellipse 
→having center (0,0) , vertex ( and covertex
 and covertex  and focus
 and focus  is given by:
 is given by:

As definition of an ellipse is that locus of all the points in a plane such that it's  distance from two fixed points called focii  remains constant.
Consider two points (a,0) and (-a,0) on Horizontal axis of an ellipse:
Distance from (a,0) to (c,0) is = a-c = 
Distance from (-a,0) to (c,0) is = a + c = 
 a -c + a +c
 a -c + a +c
           = a + a
         = 2  a  →(Option A )