:
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)

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)

step-by-step explanation:

the true ones are a b and d

c > -10.55

step-by-step explanation: