Persamaan garis yg melalui 2 Titik (-2, 1) Dan (3,5) adalah

Persamaan garis yg melalui 2 Titik (-2, 1) Dan (3,5) adalah

$begin{aligned} sf frac{y - y_{1}}{y_{2} - y_{1}} &= sf frac{x - x_{1}}{x_{2} - x_{1}} \ sf frac{y - 1}{5 - 1} &= sf frac{x - (-2)}{3 - (-2)} \ sf frac{y - 1}{4} &= sf frac{x + 2}{3 + 2} \ sf frac{y - 1}{4} &= sf frac{x + 2}{5} \ sf 5(y - 1) &= sf 4(x + 2) \ sf 5y - 5 &= sf 4x + 8 \ sf 5y - 4x - 5 - 8 &= sf 0 \ red{sf 5y - 4x - 13} & red{= sf 0} end{aligned}$

Jawaban:

y – y1 / y2 – y1 = x – x1 / x2 – x1

(y – 1) / (5 – 1) = (x + 2) / (3 + 2)

y – 1 / 4 = x + 2 / 5

5y – 5 = 4x + 8

4x – 5y + 13 = 0