Question

Persamaan garis yang tegak lurus dengan garis 2x-y+3=0 dan melalui titik (-4,-5) adalah.....
mohon dibantu ya

Answer 1

M = y/x
m = -1/2

y-y1 = m ( x-x1 )
y-(-5) = -1/2 (x-(-4))
y+5 = -1/2 (x+4)
y+5 = -1/2x-2
y+1/2x+5+2 = 0
y+1/2x+7 = 0
y+ 1/2x=-7
y=-1/2x-7

semoga mrmbantu