Tentukan lah persamaan garis yang melalui titik (2,-1) dan (4,7).​

__P e r s a m a a n  G a r i s__

(y – y₁)/(y₂ – y₁) = (x – x₁)/(x₂ – x₁)

(y + 1)/(7 + 1) = (x – 2)/(4 – 2)

2y + 2 = 8x – 16

2y – 8x + 18 = 0

y- 4x + 9 = 0

yeyeye

jawaban:

2,1) –> (x1, y1)

(4,7) –> (x2, y2)

m = (y2 – y1)/(x2 – x1)

m = (7 – 1)/(4 – 2)

m = 6/2

m = 3

semoga bermanfaat