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Persamaan garis yang melalui titik K (-1,-6) dan L (-4,-3) adalah.......

Pertanyaan

Persamaan garis yang melalui titik K (-1,-6) dan L (-4,-3) adalah.......

  1. x-y=-7

  2. x-y=-5

  3. x+y=-7

  4. x+y=-5

R. RGFLSATU

Master Teacher

Jawaban terverifikasi

Pembahasan

M i s a l k a n space t i t i k space K space open parentheses x subscript 1 comma space y subscript 1 close parentheses space d a n space L space left parenthesis x subscript 2 comma space y subscript 2 right parenthesis space m a k a space space open parentheses x subscript 1 comma space y subscript 1 close parentheses equals left parenthesis negative 1 comma negative 6 right parenthesis space d a n space open parentheses x subscript 2 comma space y subscript 2 close parentheses equals left parenthesis negative 4 comma negative 3 right parenthesis  S u b s t i t u s i k a n space n i l a i space open parentheses x subscript 1 comma space y subscript 1 close parentheses space d a n space left parenthesis x subscript 2 comma space y subscript 2 right parenthesis space p a d a space r u m u s space p e r s a m a a n space g a r i s space y a n g space m e l a l u i space d u a space t i t i k  fraction numerator y minus y subscript 1 over denominator y subscript 2 minus y subscript 1 end fraction equals fraction numerator x minus x subscript 1 over denominator x subscript 2 minus x subscript 1 end fraction  left right double arrow fraction numerator y minus open parentheses negative 6 close parentheses over denominator negative 3 minus open parentheses negative 6 close parentheses end fraction equals fraction numerator x minus open parentheses negative 1 close parentheses over denominator negative 4 minus open parentheses negative 1 close parentheses end fraction  left right double arrow fraction numerator y plus 6 over denominator negative 3 plus 6 end fraction equals fraction numerator x plus 1 over denominator negative 4 plus 1 end fraction  left right double arrow fraction numerator y plus 6 over denominator 3 end fraction equals fraction numerator x plus 1 over denominator negative 3 end fraction  left right double arrow negative 3 y minus 18 equals 3 x plus 3  left right double arrow negative 3 y equals 3 x plus 3 plus 18  left right double arrow negative 3 y equals 3 x plus 21  left right double arrow negative 3 y minus 3 x equals 21  left right double arrow y plus x equals negative 7

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Persamaan garis yang melalui titik (−11, −2) dan (−3, 7) adalah ....

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