Determine the domain and the range of the function.f(x) = x2 + 2x - 8
A. domain: all real numbers
range: {y|y ? 9}
B. domain: range: {x|x ? 1}
range: {y|y ? 9}
C. domain: all real numbers
range: {y|y ? -9}
D. domain: range: {x|x ? 1}
range: {y|y ? -9}
Answer: C
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A. - 
B. 
C. 
D. 
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