liamwilliams901 liamwilliams901
  • 08-07-2019
  • Mathematics
contestada

Which point would map onto itself after a reflection across the line y= -x
A) -4,-4
B) -4,0
C) 0,-4
D) 4,-4

Respuesta :

absduh123 absduh123
  • 08-07-2019

Answer:

d

Step-by-step explanation:

Answer Link
Аноним Аноним
  • 08-07-2019

Answer:

D.  (4, -4).

Step-by-step explanation:

y = -x is a line that has a negative slope of  -1 ( rising to the left)  and passing through the origin. It makes an angle of 45 degrees with the x-axis.

So, for example the point ( 0,1 )will map onto( -1 , 0).

Any point which maps on to itself across this line will have to lie on the line.

If x = 4 y = -x = -4.

Answer Link

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