Respuesta :

The answer is C. I believe
hf0028321

Answer:

f/d

Step-by-step explanation:

  • the slope of two perpendicular lines is multiple each other is -1.
  • [tex] - \frac{d}{f} \times x = - 1 \\ x = - 1 \div - \frac{d}{f} \\ x = \frac{f}{d} [/tex]

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