Hello, this should help you out!
In this graph, the y values move up 3 units each. Therefore, the blue parabola underwent a translation of 3 units upward.
For further explanation, we see that (0,0) goes up to (0,3), meaning the graph shifted upwards 3 units. So, each y value is raised by positive 3 units!
I hope I was of assistance! #SpreadTheLove! <3