Determine the domain and the range of the function.f(x) = x2 + 2x + 1
A. domain: {x|x ? 1}
range: {y|y ? 0}
B. domain: {x|x ? -1}
range: {y|y ? 0}
C. domain: all real numbers
range: {y|y ? 0}
D. domain: all real numbers
range: {y|y ? 1}
Answer: C
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