Matematika

Pertanyaan

tentukan gradien garis yang melalui dua titik berikut ini!
A. (4, 5) dan (-5, 3)
B. (-2, -3) dan (-1, 6)
C. (5, -2) dan (-2, 4)
D. (-1, -3) dan (-3, -5)
caranya jugaaaaaa,,,,,,,,

1 Jawaban

  • A.
    [tex]m = \frac{y2 - y1}{x2 - x1} \\ = \frac{3 - 5}{ - 5 - 4} \\ = \frac{ - 2}{ - 9} \\ = \frac{2}{9} [/tex]
    B.
    [tex] m = \frac{y2 - y1}{x2 - x1} \\ = \frac{6 - ( - 3)}{ - 1 - ( - 2)} \\ = \frac{6 + 3}{ - 1 + 2} \\ = \frac{9}{1} \\ = 9[/tex]
    C.
    [tex]m = \frac{y2 - y1}{x2 - x1} \\ = \frac{4 - ( - 2)}{ - 2 - 5} \\ = \frac{6}{ - 7} \\ = - \frac{6}{7} [/tex]
    D.
    [tex]m = \frac{y2 - y1}{x2 - x1} \\ = \frac{ - 5 - ( - 3)}{ - 3 - ( - 1)} \\ = \frac{ - 5 + 3}{ - 3 + 1} \\ = \frac{ - 2}{ - 2} \\ = 1[/tex]

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