Use the Following to Answer Questions :
a Quadratic Graph $\in$

Multiple Choice

Use the following to answer questions :
A quadratic graph is shown. Assume required features have integer values.
f(x) = x² + 2x - 3 (Gridlines are spaced one unit apart.)
-Determine the domain.

A) x $\in$ [-3, 1]
B) x $\in$ (-4, ?)
C) x $\in$ [-4, ?)
D) x $\in$ (-?, ?)