Identificació de funcions

$$f\left(x\right)=\frac{-1}{x-4}$$

$$f\left(x\right)=\frac{1}{x+4}$$

$$f\left(x\right)=\frac{1}{x-4}$$

$$f\left(x\right)=\frac{1}{\sqrt[]{x-4}}$$

$$f\left(x\right)=3x^2+5x-1$$

$$f\left(x\right)=-3x^2-5x-1$$

$$f\left(x\right)=3x^2+5x$$

$$f\left(x\right)=\frac{1}{x+1}$$

$$f\left(x\right)=\frac{1}{x}$$

$$f\left(x\right)=-Ln\ x$$

$$f\left(x\right)=\sqrt[]{-x}$$

$$f\left(x\right)=-\sqrt[]{-x}$$

$$f\left(x\right)=\left(x+2\right)\ Ln\ x$$

$$f\left(x\right)=Ln\ x$$

$$f\left(x\right)=\sqrt[]{x+2}$$

$$f\left(x\right)=\sqrt[]{-x}$$

$$f\left(x\right)=\ Ln\ x$$

$$f\left(x\right)=0,75^x$$

$$f\left(x\right)=e^x$$

$$f\left(x\right)=2^x$$

$$f\left(x\right)=-\ Ln\ x$$

$$f\left(x\right)=\frac{1}{x}$$

$$f\left(x\right)=2^x$$

$$f\left(x\right)=\log_2x$$

$$f\left(x\right)=\ \left|Ln\ x\right|$$

$$f\left(x\right)=\frac{x^2}{3}-1$$

$$f\left(x\right)=x^2$$

$$f\left(x\right)=x^2-1$$