The Graph of a Quadratic Function Is Given $h ( x ) = x ^ { 2 } - 1$

Multiple Choice

The graph of a quadratic function is given. Determine the function's equation.
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A) $h ( x ) = x ^ { 2 } - 1$
B) $i ( x ) = x ^ { 2 } + 1$
C) $f ( x ) = x ^ { 2 } - 2 x + 1$
D) $g ( x ) = x ^ { 2 } + 2 x + 1$