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Titik A (5, 7) dicerminkan terhadap garis x = 3. Bayangan titik A adalah ….

Rani Maharani

Jawaban

Titik A (5, 7) dicerminkan terhadap garis x = 3. Bayangan titik A dapat dicari dengan menggunakan rumus:

$$P = (2a - x, y)$$

dengan P adalah bayangan dari titik A, a adalah koordinat x dari titik simetri (dalam hal ini a = 3), dan (x, y) adalah koordinat titik A.

Substitusi nilai yang diketahui:

$$\begin{aligned} P &= (2a - x, y) \\ &= (2(3) - 5, 7) \\ &= \boxed{(1, 7)} \end{aligned}$$

Jadi, bayangan titik A adalah (1, 7).

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