Remember that the formula is f(x) = a(x-h)^2+k.
1/2: The closer to zero the value, the wider, so this will stretch vertically.
5: Which means that h=5, so the graph is shifting left 5 units.
7: this means that k=7, so the graph is shifted up 7 units.
The answer is stretched vertically, shifted left 5 units, shifted up 7 units.