QUESTION IMAGE
Question
- triangle xyz with vertices x(-3, 7), y(-2, 1), and z(-5, 2): (a) reflection: in the x - axis (b) translation: (x, y)→(x + 9, y + 2)
Step1: Reflexión en el eje x
Cambia el signo de la coordenada y.
$X(-3,7)\to X_1(-3, - 7)$, $Y(-2,1)\to Y_1(-2,-1)$, $Z(-5,2)\to Z_1(-5,-2)$
Step2: Aplicar traducción
Suma 9 a la coordenada x y 2 a la coordenada y.
$X_1(-3,-7)\to X'(-3 + 9,-7 + 2)=(6,-5)$
$Y_1(-2,-1)\to Y'(-2 + 9,-1 + 2)=(7,1)$
$Z_1(-5,-2)\to Z'(-5 + 9,-2 + 2)=(4,0)$
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$X'(6,-5)$
$Y'(7,1)$
$Z'(4,0)$