Determine whether the relations represent functions. Identify the domain and range of each relation. 
A. not a function
B. function
domain:{24, 48, 72, 96}
range: {4, 8, 12, 16}
C. function
domain: {4, 8, 12, 16}
range: {24, 48, 72, 96}
Answer: C
Mathematics
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A. a) 130 ?, b) 38 ?, c) 14 ?, d) 3.2 ? B. a) 110 ?, b) 35 ?, c) 12 ?, d) 3.2 ? C. a) 112 ?, b) 40 ?, c) 8 ?, d) 3.5 ? D. a) 111 ?, b) 38 ?, c) 8 ?, d) 3.5 ?
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Simplify. Assume that all variables are nonzero.
A. 59 B. 1 C. 0 D. Undefined
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Find the sum of the geometric series.
A. 12 B. -1230 C. 75 D. -366
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Use the graph of the rational function shown to complete the statement.
As x?3+, f(x)? ?
A. 2 B. -? C. -3 D. +?
Mathematics