Provide an appropriate response.
Using only this graph of f(x) = a(x - h)2 + k, what are the signs of h and k?
A. h is positive and k is negative.
B. h is negative and k is positive.
C. Both are positive.
D. Both are negative.
Answer: C
Mathematics
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?
?
Your answer should be a radical expression.
?
A. 
B. ?
C. ?
D. ?
E. ?
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A. 
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