Write the equation of the parabola in vertex form.     With a vertex (–4, 3), and a point (4, 131)
       
      
                
     
    
    
    
    
    2 answers:
            
              
              
                
                
Vertex form is f(x) =  a(x  + 4) + 3   where a is a constant
plug in the point (4,131):-
131 = a(4+4) + 3
128 = 8a
a = 16 
so we have   f(x) = 16(x + 4) + 3 .     Thats the parabola.
 
                                
             
                    
              
              
                
                
Vertex form : y=2(x+4)^2 + 3
                                
             
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