Mathematics, 15.07.2019 05:00 20brooklyn22
What are the explicit equation and domain for a geometric sequence with a first term of 5 and a second term of −10?
Answers: 2
. We are told that the first number in the sequence is 5 and the second number is -10. Geometric sequences rely on that r to be a common ratio which is a muliplier. So to get from 5 to -10 we have to multiply by -2. That means that r = -2. Our formula then is 
and any value could be subbed in for n to find that specific number in the sequence. A geometric sequence may be thought of as an exponential function whose domain is the set of natural numbers. 
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