Question

Garis tegak lurus Q(5,-7) dan y= -1/2x+2

Answer 1

Y = -1/2 x + 2 => m = -1/2
karena tegak lurus m = -1/(-1/2) = 2
pers garis yg melalui (5,-7) bergradien 2
y - y1 = m(x - x1)
=> y - (-7) = 2(x - 5)
=> y + 7 = 2x - 10
=> y = 2x - 17