× Gradien q
mq = -y/x
= 2/4
= ½
× Gradien p
mp = -1 ÷ mq
= -1 ÷ ½
= -2
× Persamaan p melalui (4,0)
y - y1 = m (x - x1)
y - 0 = -2 (x - 4)
y = -2x + 8
y + 2x = 8
Jadi jawabannya B
× Mohon maaf bila ada kesalahan. Semoga membantu^^ ×
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× Gradien q
mq = -y/x
= 2/4
= ½
× Gradien p
mp = -1 ÷ mq
= -1 ÷ ½
= -2
× Persamaan p melalui (4,0)
y - y1 = m (x - x1)
y - 0 = -2 (x - 4)
y = -2x + 8
y + 2x = 8
Jadi jawabannya B
× Mohon maaf bila ada kesalahan. Semoga membantu^^ ×
garis q melewati titik (0,-2) dan (4,0)
m=y2-y1/x2-x1
m=0-(-2)/4-0
m=2/4
m=½
kemudian cari gradien garis p yang tegak lurus garis q.
mp.mq=-1
mp.½=-1
mp=-1:½
mp=-2
garis p melewati titik (4,0), persamaannya
y-yp=mp(x-xp)
y-0=-2(x-4)
y=-2x+8
y+2x=8
jawabannya B.