Write the first four terms of the sequence.an = 6n - 9
A. a1 = 6, a2 = 3, a3 = 9, a4 = 15
B. a1 = 15, a2 = 3, a3 = 9, a4 = 15
C. a1 = -3, a2 = 21, a3 = 9, a4 = 33
D. a1 = -3, a2 = 3, a3 = 9, a4 = 15
Answer: D
Mathematics
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y = 
A. 
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