Respuesta :

Answer:

  • F' = (9, -1)

Step-by-step explanation:

Original coordinates of F

  • F = (-9, -1)

It is reflected across the y-axis.

Transformation of coordinates across y-axis

  • (x, y) ⇒ (-x, y)

Therefore, on reflection, the coordinates of F' will be :

  • (-9, -1) ⇒ (-(-9), -1)
  • F' = (9, -1)

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