koordinat titik M = (2,3) dan (4,0)
gradien garis M = (0-3)/(4-2) = -3/2
tegak lurus, berarti gradien garis lain = -1/(-3/2) = 2/3
tinggal cocokin di opsinya yg gradiennya 2/3 yg mana??
a. gradiennya = (4-3)/(-1-2) = 1/-3 = -1/3 (bukan)
b. gradiennya = -a/b = -3/2 (bukan)
c. gradiennya = -6/-3 = 2 (bukan)
d. gradiennya = (7-5)/(1+2) = 2/3 (betul)
jadi yg bener opsi d.
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koordinat titik M = (2,3) dan (4,0)
gradien garis M = (0-3)/(4-2) = -3/2
tegak lurus, berarti gradien garis lain = -1/(-3/2) = 2/3
tinggal cocokin di opsinya yg gradiennya 2/3 yg mana??
a. gradiennya = (4-3)/(-1-2) = 1/-3 = -1/3 (bukan)
b. gradiennya = -a/b = -3/2 (bukan)
c. gradiennya = -6/-3 = 2 (bukan)
d. gradiennya = (7-5)/(1+2) = 2/3 (betul)
jadi yg bener opsi d.