Question

função inversa de f: A >B f(x)= 2x+2

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Answer 1

Oie, tudo bom?

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

Att. NLE Top Shotta

Answer 2

Resposta:

f(x)= 2x+2

y=2x+2

y-2=2x

x=(y-2)/2

faça y=x  e x=y

f⁻¹(x)=(x-2)/2