Answer :
Rearrange to vertex form:-
y = x^2 - 2x - 7
y = (x - 1)^2 - 1 - 7
y = (x - 1)^2 - 8
The vertex is at the coordinates (1, -8)
y = x^2 - 2x - 7
y = (x - 1)^2 - 1 - 7
y = (x - 1)^2 - 8
The vertex is at the coordinates (1, -8)