5.) Which formula can be used to describe the sequence? - 2/3, - 4, - 24, - 144 a) f (x) = 6[-2/3]^x-1 b) f (x) = - 6[2/3]^x-1 c) f (x) = - 2/3 (6) ^x-1 d) f (x) = 2/3 (-6) ^x - 1

Question

Mathematics

Sutton

13 June, 14:57

5.) Which formula can be used to describe the sequence? - 2/3, - 4, - 24, - 144 a) f (x) = 6[-2/3]^x-1 b) f (x) = - 6[2/3]^x-1 c) f (x) = - 2/3 (6) ^x-1 d) f (x) = 2/3 (-6) ^x - 1

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Answers (1)

Know the Answer?

Braylon Garner · Answer 1

Let x = 1,2,3,4

Test f (x) = 6[-2/3]^ (x-1).

f (x) = 6, - 4, 8/3, - 16/9 Incorrect

Test f (x) = - 6[2/3]^ (x-1)

f (x) = - 6, - 4, - 8/3, - 16/9 Incorrect

Test f (x) = (2/3) * 6^ (x-1)

f (x) = 2/3, 4, 24, 144 Incorrect

Test f (x) = (2/3) * (-6) ^ (x-1)

f (x) = - 2/3, - 4, - 24, - 144 Correct

Answer:

The correct formula is f (x) = (2/3) * (-6) ^ (x-1)