Jawab:
Syarat 2 garis tegaklurus maka gradien grs 1 dikali gradien grs 2 = - 1
3x - 2y = 4
3/2 x - 2 = y jadi m = 3/2
shg m garis kedua = - 2/3 karena m2 = -1 / (3/2) = - 1 /m1
persamaan grs kedua yg melaui Q(-3.5)
y-y1 = m ( x-x1)
y-5 = - 2/3 (x +3) ⇒ y = -2/3 x - 2 +5 = - 2/3 x -3
0 = -2x - 3y -9 atau 2x+3y+9=0
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Jawab:
Syarat 2 garis tegaklurus maka gradien grs 1 dikali gradien grs 2 = - 1
3x - 2y = 4
3/2 x - 2 = y jadi m = 3/2
shg m garis kedua = - 2/3 karena m2 = -1 / (3/2) = - 1 /m1
persamaan grs kedua yg melaui Q(-3.5)
y-y1 = m ( x-x1)
y-5 = - 2/3 (x +3) ⇒ y = -2/3 x - 2 +5 = - 2/3 x -3
0 = -2x - 3y -9 atau 2x+3y+9=0