QUESTION IMAGE
Question
what would the new point be if you rotated the point (4,9) 180° about the origin?
a. (-9,4)
b. (-4,-9)
c. (9,-4)
d. (4,9)
○ a
○ b
○ c
○ d
Step1: Regla de rotación de \(180^{\circ}\)
Cuando se rota un punto \((x,y)\) \(180^{\circ}\) alrededor del origen, la nueva coordenada es \((-x,-y)\).
Step2: Aplicar la regla al punto \((4,9)\)
Para \(x = 4\) y \(y=9\), \( -x=-4\) y \( -y = -9\).
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B. \((-4,-9)\)