Question 1085949
The vertex is at x=-b/2a=-(4/(8/3))=-3/2.  if x= -3/2, y=1
This means that it is (4/3)(x+1.5)^2+1; a=(4/3), b=-3/2, c=1

{{{graph(300,300,-10,10,-10,10,(4/3)*(x+1.5)^2+1)}}}