locus sorta (1 Viewer)

[Kutay]

hey i used to be able to do these but got stuck can someone explain to me
how to do this

parabola 4y = x^2 - 2x + 5
i have to express it in the form of (x - h)^2 = 4a (y - k)

i know that u got to use completing the square but yeh get stuck somewhere >>??
if someone can just go through the steps to gettting it?? cause i know once got that how to get all the directric etc and all but yeh mind blank thankyou

 

[FinalFantasy]

"parabola 4y = x^2 - 2x + 5
i have to express it in the form of (x - h)^2 = 4a (y - k)"
4y = x^2 - 2x + 5
4y=x²-2x+1+4
4y-4=x²-2x+1
4(y-1)=(x-1)²