Respuesta :

mhanifa

Answer:

  • Undefined

Step-by-step explanation:

The given two points have same x- coordinates, hence the line vertical and is parallel to the y-axis:

  • x = 9

Its slope is undefined.
  • (9,4)
  • (9,-5)

[tex]\\ \sf\longmapsto m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\\ \sf\longmapsto m=\dfrac{-5-4}{9-9}[/tex]

[tex]\\ \sf\longmapsto m=\dfrac{-9}{0}[/tex]

[tex]\\ \sf\longmapsto m=\infty[/tex]

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