Question 1432
 Make the complete square
 y=4x^2-8x+5 = 4(x^2 -2x +1) -4 + 5 
  = 4(x-1)^2 + 1
 OR y - 1 =  4(x-1)^2

 Hence, the vertex of this parabola is (1,2) & cancave upward.