Question 873339
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Hi
the vertex form of a Parabola opening up(a>0) or down(a<0) is {{{y=a(x-h)^2 +k}}} 
where(h,k) is the vertex  and  x = h  is the Line of Symmetry
You are comparing YOur Equations to this vertex Form for a Parabola
a. Will either graph be narrower? no, (coefficient of the squared term the same
 b. What is the position of the vertex for each graph V(0,0) and V(0,-6)
 c. Will either graph open downward? NO, coefficient of the squared term > 0
 d. What is the range for each graph?  y &#8805;  0  and y &#8805;  -6