Tentukan persamaan garis lurus yang melalui titik :

a. (3, 6) dan (4, 2)
b. (-3, -5) dan (-2, 3)

Tentukan persamaan garis lurus yang melalui titik :

" PGL "

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a. ( 3, 6 ) dan ( 4, 2 )

$sf frac{ {y}^{} - {y}^{1} }{ {y}^{2} - {y}^{1} } = frac{x - {x}^{1} }{ {x}^{2} - {x}^{1} }$

$sf frac{y - 6}{2 - 6} = frac{x - 3}{4 - 3}$

$sf frac{y - 6}{ - 4} = frac{x - 3}{1}$

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–4( x – 3 ) = y – 6

y – 6 = – 4x + 12

y = – 4x + 12 + 6

$huge boxed{ sf y = - 4x + 18}$

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( – 3, – 5 ) dan ( – 2, 3 )

$sf frac{y - {y}^{1} }{ {y}^{2} - {y}^{1} } = frac{x - {x}^{1} }{ {x}^{2} - {x}^{1} }$

$sf frac{y - ( - 5)}{3 - ( - 5)} = frac{x - ( - 3)}{ - 2 - ( - 3)}$

$sf frac{y + 5}{8} = frac{x + 3}{1}$

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y + 5 = 8( x + 3 )

y + 5 = 8x + 24

y = 8x + 24 – 5

$huge boxed{ sf y = 8x + 19}$

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Semoga Membantu

$tt boxed{ boxed{ boxed{ sf Answer : By : Ciyo}}}$