Find the domain of the rational expression: x-4/2x-6

1. all real numbers except 3
2. all real numbers except 6
3. all real numbers except O
4. all real numbers except 4

Respuesta :

Answer:

All real numbers except 3

Step-by-step explanation:

Given

[tex]\frac{x - 4}{2x - 6}[/tex]

Required

Determine the domain

We start by writing the following inequality

[tex]2x - 6 \neq 0[/tex]

Add 6 to both sides

[tex]2x -6 + 6 \neq = 0 + 6[/tex]

[tex]2x \neq 6[/tex]

Divide both sides by 2

[tex]\frac{2x}{2}\neq \frac{6}{2}[/tex]

[tex]x \neq \frac{6}{2}[/tex]

[tex]x \neq = 3[/tex]

As such, the domain of x is all real numbers except 3