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32, 16, 8, 4, 2, ...

Find the common ratio of the given sequence, and write an exponential function which represents the sequence.

A2; f(x)=32(2)^x-1

B1/2; f(x)=32^x-1

C2; f(x)=32(1/2)^x-1

D1/2; f(x)=32(1/2)^x-1

Verified Answer :

Setor9

The common ratio is 1/2 and the first term is 32
f(x)=A1×(common ratio)^x-1
f(x)=32×(1/2)^x-1
Your answer is D.

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