Matematika, mapel kelas 8help, Arigatojan asalini pelajarannnnn

Matematika, mapel kelas 8help, Arigatojan asalini pelajarannnnn

Melalui titik (2, 1) dan (-2, -1)

x1 = 2

y1 = 1

x2 = -2

y2 = -1

persamaan garis

$frac{(y - y1)}{(y2 - y1)} = frac{(x-x1)}{(x2-x1)}\\frac{y - 1}{-1-1} = frac{x-2}{-2-2}\\frac{y-1}{-2} = frac{x-2}{-4}\\y-1 = frac{x-2}{2}\\2(y - 1) = x - 2\\2y - 2 = x - 2\\x - 2y - 2 + 2 = 0\\x - 2y = 0$