The line is called the directrix.  Here we have a vertical directrix, so a parabola sideways from usual.
Geometry is best done with squared distances.  The squared distance from an arbitrary point (x,y) to the vertical line x=2 is 

We equate that to the squared distance of (x,y) to the focus (-2,0): 



We could call that done.  A more standard form might be
 
 
        
        
        
Answer:
Triangles ABC and MNO are similar by SSS
Step-by-step explanation:
we know that
If two triangles are similar, then the ratio of its corresponding sides is proportional
In this problem
If this problem the corresponding sides are
AB and MN
BC and NO
AC and MO
Verify if the corresponding sides are proportional

substitute the given values

 ----- is true
 ----- is true
so
When two triangles have corresponding sides with identical ratios , the triangles are similar by SSS Similarity
therefore
Triangles ABC and MNO are similar by SSS
 
        
             
        
        
        
Answer:
38
Step-by-step explanation: