3,12,48,192... write an exponential function which represents the sequence. Use n = 1, 2, 3, ... A) 4; f(n) = 3(4)n-1 B) 1 4 ; f(x) = 3(4)n-1 C) 4; f(n) = 3( 1 4 )n-1 D) 1 4 ; f(n) = 3( 1 4 )n-1

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step-by-step explanation:

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3