persamaan garis yang melalui titik (-3,-2) dan (-4,-1) adalah

[tex]( x1,y1) = ( - 3, - 2) \\ (x2,y2) = ( - 4, - 1) \\ \\ \frac{x - x1}{x2 - x1} = \frac{y - y1}{y2 - y1} \\ \frac{x - ( - 3)}{ - 4 - ( - 3)} = \frac{y - ( - 2)}{ - 1 - ( - 2)} \\ \frac{x + 3}{ - 4 + 3} = \frac{y + 2}{ - 1 + 2} \\ \frac{x + 3}{ - 1} = \frac{y + 2}{1} \\ x + 3 = - (y + 2) \\ x + 3 = - y - 2 \\ x + y = - 2 - 3 \\ x + y = - 5[/tex]