Question

F(x)= 7 -2x função inversa me ajuda urgente

Answer 1

Oie, tudo bom?

$f(x) = 7 - 2x \\ \boxed{f(x)⟶y} \\ y= 7 - 2x \\ \boxed{x⟷y} \\ x = 7 - 2y \\ 7 - 2y = x \\ - 2y = x - 7 \\ y = - \frac{1}{2} x + \frac{7}{2} \\ \boxed{y⟶f {}^{ - 1}(x) } \\ \boxed{f {}^{ - 1}(x) = - \frac{1}{2} x + \frac{7}{2}}$

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