Persamaan garis
[tex] \frac{y - y1}{y2 - y1} = \frac{x - x1}{x2 - x1} \\ \\ \frac{y - ( - 7)}{5 - ( - 7)} = \frac{x - ( - 10)}{ - 2 - ( - 10)} \\ \\ \frac{y + 7}{12} = \frac{x + 10}{8} \\ \\ 12(x + 10) = 8(y + 7) \\ \\ 12x + 120= 8y + 56 \\ 12x - 8y + 120 - 56 = 0 \\ 12x - 8y + 64 = 0 \\ - - - - - - - - - \div 4 \\ 3x - 2y + 16 = 0[/tex]
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Persamaan garis
[tex] \frac{y - y1}{y2 - y1} = \frac{x - x1}{x2 - x1} \\ \\ \frac{y - ( - 7)}{5 - ( - 7)} = \frac{x - ( - 10)}{ - 2 - ( - 10)} \\ \\ \frac{y + 7}{12} = \frac{x + 10}{8} \\ \\ 12(x + 10) = 8(y + 7) \\ \\ 12x + 120= 8y + 56 \\ 12x - 8y + 120 - 56 = 0 \\ 12x - 8y + 64 = 0 \\ - - - - - - - - - \div 4 \\ 3x - 2y + 16 = 0[/tex]