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Oksi-84 [34.3K]
3 years ago
11

What is the equation for a geometric sequence with a first term of 2 and second term of -8?

Mathematics
1 answer:
Naya [18.7K]3 years ago
4 0
A(1) = 2
r = a(2)/a(1) = -8/2 = -4

a(n) =a {(r)}^{n - 1}  \\ a(n)  = 2 {( - 4)}^{n - 1}
Answer will be D.

!! Hope It Helps !!
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