Suppose you are investing in a company and the returns that you receive are based upon your initial investment. The piecewise function f ( x ) f(x)​ gives the returns after 1 1​ year based upon the initial investment x x​. f ( x ) = { 0.006 x , x < 1500 0.021 x 150 , 1500 ≤ x < 2500 0.036 x 165 , 2500 ≤ x < 3500 0.051 x 180 , x ≥ 3500 f(x)= ⎩ ⎨ ⎧ ​ 0.006x, 0.021x 150, 0.036x 165, 0.051x 180, ​ x<1500 1500≤x<2500 2500≤x<3500 x≥3500 ​