Write an equation that models the sequence 400, 200, 100, 50, ... A) y=400(2^x) B) y=50x(2^x) C) y=1/2x + 400 D)400(1/2)^(x-1) Thanks!

asked May 7, 2018 89.2k views

1 vote

Write an equation that models the sequence 400, 200, 100, 50, ...

A) y=400(2^x)
B) y=50x(2^x)
C) y=1/2x + 400
D)400(1/2)^(x-1)
Thanks!

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4 votes

the answer is d because the amplitude is 400, and it is decreasing by a factor of 1/2.

Solitud answered May 13, 2018

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