hannahellithorpe
hannahellithorpe hannahellithorpe
  • 25-10-2019
  • Mathematics
contestada

Please help:
Triangle DEF has coordinates D(2, 5); E(-1 5); F(1, 2). Find the coordinates of the image D’E’F’ after a reflection across the y-axis. (2 points)


Respuesta :

mberisso
mberisso mberisso
  • 25-10-2019

Answer:

D' (-2,5), E' (1,5); and F' (-1,2)

Step by step explanation:

When one does a reflection across the y-axis, the values of the y-coordinate for the order pairs remain the same value, while the values of the x-coordinates flip their signs.

Therefore:

point D (2,5) becomes D' (-2,5)

point E (-1,5) becomes E' (1,5)

and point F (1,2) becomes F' (-1,2)

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