Question

Seja f(x)=−2x+1. Calcule f−1(62)

Answer 1

Resposta:

$f ^{ - 1} (x) = - 2x + 1 \\ y = - 2x + 1 \\ x = - 2y + 1 \\ - 2y = x -1 \\ 2y = - x + 1 \\ y = \frac{ - x + 1}{2} \\ \\ f ^{ - 1} (x) = \frac{ - x + 1}{2} \\ f ^{ - 1} (62) = \frac{ - 62 + 1}{2} = \frac{ - 63}{2}$