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A: f(x) = -100(4)^x
B: f(x) = -200(2)^x
C: f(x) = -50(4)^x
D: f(x) = -400(2)^2
PLEASE HELP!!!!


A Fx 1004x B Fx 2002x C Fx 504x D Fx 40022 PLEASE HELP class=