Which graph represents the sequence: 80, -40, 20

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asked Jun 23, 2018 52.3k views

1 Answer

Jackrabbit · Answer 1 · 2018-06-29T19:22:12+0000

80/-40=-40/20=-2,
the sequence: 80, -40, 20 is a geometric sequence
its general formula is Vn+1 = q Vn, where q= -2,
if we put Vn+1 = f(x)
Vn = x

so we have f(x)= -2x so the graph that represents the sequence is graph of linear equation

Which graph represents the sequence: 80, -40, 20

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