Respuesta :

Answer: it’s undefined or 0

Step-by-step explanation:

owen0621

Answer:

Undefined

Step-by-step explanation:

Slope= (y^2-y^1)/(x^2-x^1)

(x^1,y^1) and (x^2,y^2)

(9,4) and (9,-5)

SLOPE:

(-5-4)/(9-9)

-9/0

Undefined

kinda hard to show on brainy but there you go hope this helps

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