3.2E: Dominio y Rango (Ejercicios)

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30 oct 2022
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- 3.2: Dominio y Rango
- 3.3: Tasas de Cambio y Comportamiento de las Gráficas

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Para los siguientes ejercicios, encuentra el dominio de cada función, expresando respuestas usando notación de intervalos.

20. $f(x)=\frac{2}{3 x+2}$
21. $f(x)=\frac{x-3}{x^{2}-4 x-12}$
22. $f(x)=\frac{\sqrt{x-6}}{\sqrt{x-4}}$
23. Grafique esta función por tramos: $f(x)=\left\{\begin{array}{ll}x+1 & x<-2 \\ -2 x-3 & x \geq-2\end{array}\right.$

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