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: all real numbers
range: {y|y = 2 or y = -6}
intercept: (0, -6)
symmetry: none
B. function
domain: all real numbers
range: all real numbers
intercept: (0, -6)
symmetry: none
C. function
domain: {x|x = 2 or x = -6}
range: all real numbers
intercept: (-6, 0)
symmetry: x-axis
D. not a function
Answer: D
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