Solve y=f(x).(1.3)=1/2

$$y = f ( x ) . ( 1.3 ) = 1 / 2$$

Solve for f

$$\left\{\begin{matrix}f=\frac{y}{x}\text{, }&x\neq 0\\f\in \mathrm{R}\text{, }&y=0\text{ and }x=0\end{matrix}\right.$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$fx=y$$

The equation is in standard form.

$$xf=y$$

Divide both sides by x.

$$\frac{xf}{x}=\frac{y}{x}$$

Dividing by x undoes the multiplication by x.

$$f=\frac{y}{x}$$

Solve for x

$$\left\{\begin{matrix}x=\frac{y}{f}\text{, }&f\neq 0\\x\in \mathrm{R}\text{, }&y=0\text{ and }f=0\end{matrix}\right.$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$fx=y$$

Divide both sides by f.

$$\frac{fx}{f}=\frac{y}{f}$$

Dividing by f undoes the multiplication by f.

$$x=\frac{y}{f}$$