Give the domain and range of the relation.{(3, 7), (-1, -8), (-7, -4), (5, -8)}
A. domain: {-8, -4, 7}; range: {-7, -1, 3, 5}
B. domain: {3, 5, 7}; range: {-8, -7, -4, -1}
C. domain: {-7, -1, 3, 5}; range: {-8, -4, 7}
D. domain: {-8, -7, -4, -1}; range: {3, 5, 7}
Answer: C
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and 
A. Local maximum at 
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A. 
B. 
C. 
D. 
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