bayangan titik R (-2, -5 ) jika dicerminkan terhadap garis y = -x adalah... bantu jawab ya

Titik R (-2,-5) --> x = -2, y = -5

Dicerminkan garis y = -x
x' = -x
x' = -(-2)
x' = 2

y' = -y
y' = - (-5)
y' = 5

Bayangan titik R (x', y') = (2,5)