Question 440051
Your table is confused, but the function:{{{y=(x-1)^2-1}}} is the standard form 

of the parabola with vertex at (1, -1); y-intercept at (0, -1); x-intercepts at
(0, 0) and (2, 0).The axis of symmetry is: x=1. See the graph below:

{{{graph(300, 300, -5, 5, -5, 5, (x-1)^2-1)}}}.