BANTU MTK DONG PLISSSS""""".

no1​

BANTU MTK DONG PLISSSS""""".

no1​

Jawaban:

[tex]a). \: y - ( - 3) = - \frac{1}{2} (x - 2) \\ y + 3 = - \frac{1}{2} x + 1 \\ y = - \frac{1}{2} x + 1 - 3 \\ y = - \frac{1}{2} x - 2 \: ( \times 2) \\ 2y = - x - 4 \\ x + 2y + 4 = 0 \\ \\ \\ [/tex]

[tex]b). \: \frac{y - ( - 3)}{5 - ( - 3)} = \frac{x - 2}{ - 4 - 2} \\ \frac{y + 3}{5 + 3} = \frac{x - 2}{ - 6} \\ \frac{y + 3}{8} = \frac{x - 2}{ - 6} \\ - 6y - 18 = 8x - 16 \\ 8x + 6y - 16 + 18 = 0 \\ 8x + 6y + 2 = 0[/tex]