Write an equation that models the sequence 400, 200, 100, 50, ...
Ay = 400(2^x)
By = 50 (2^x)
Cy = 1/2x + 400
Dy = 400(1/2)^x-1
Ay = 400(2^x)
By = 50 (2^x)
Cy = 1/2x + 400
Dy = 400(1/2)^x-1