Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function
domain: {x|x ? 0}
range: {y|y ? -2}
intercepts: (-2, 0), (0, -2), (2, 0)
symmetry: y-axis
B. function
domain: all real numbers
range: all real numbers
intercepts: (-2, 0), (0, -2), (2, 0)
symmetry: none
C. function
domain: {x|x ? -2}
range: {y|y ? 0}
intercepts: (-2, 0), (0, -2), (2, 0)
symmetry: none
D. not a function
Answer: C
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