Determine whether the relation represents a function. If the relation is a function, state its domain and range.
A. function; domain:{18, 36, 54, 72}; range: {3, 6, 9, 12}
B. not a function
C. function; domain: {3, 6, 9, 12}; range: {18, 36, 54, 72}
D. function; domain: {3, 18, 6, 36}; range: {9, 54, 12, 72}
Answer: C
Mathematics
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Simplify the complex fraction.
A. 1
B. 16
C. 
D. 
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Find the inverse of the function.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. Not invertible
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Graph the hyperbola.25y2 = 9x2 + 225
A. 
B. 
C. 
D. 
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