Tentukan ekspresi aljabar dari gambar berikut!

Tentukan ekspresi aljabar dari gambar berikut!

Tentukan ekspresi aljabar dari gambar berikut!

Jawaban dari pertanyaan di atas adalah 3x + 2y – 6 = 0.

Perhatikan konsep berikut.
Persamaan garis yang melalui dua titik (x1, y1) dan (x2, y2) dirumuskan:
(y – y1)/(y2 – y1) = (x – x1)/(x2 – x1)

Persamaan garis melalui (2, 0) dan (0,3) pada grafik di atas yaitu:
(y – y1)/(y2 – y1) = (x – x1)/(x2 – x1)
(y – 0)/(3 – 0) = (x – 2)/(0 -2)
y/3 = (x – 2)/(-2)
y(-2) = (x – 2)(3)
-2y = 3x – 6
3x + 2y – 6 = 0

Jadi eskpersi aljabarnya adalah 3x + 2y – 6 = 0.
Semoga membantu ya, semangat belajar 🙂

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