Respuesta :

Slope formula:

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

Replacing:

[tex]m=\text{ }\frac{4-6}{3-3}=-\frac{2}{0}=\text{ undefined}[/tex]

since x is constant , it is a vertical line, with an undefined slope.

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