Tentukan bayangan garis g : 3x + 2y = 6 , yang dicerminkan terhadap garis y = -2

Refleksi y = -2


[tex] \binom{x {}^{c} }{y {}^{c} } = \binom{x}{2h + y} \\ \\ \binom{x {}^{c} }{y {}^{c} } = \binom{x}{ - 4 + y} \\ \\ x = {x}^{c} \\ \\ y = {y}^{c} + 4[/tex]
Bayangan :

[tex]3x + 2y = 6 \\ 3( {x}^{c} ) + 2( {y}^{c} + 4) = 6 \\ 3 {x}^{c} + 2 {y}^{c} + 8 = 6 \\ \\ 3x + 2y + 2 = 0[/tex]

Jadi, bayangannya adalah
3x + 2y + 2 = 0