Jawabanmu

Jawaban paling cerdas!
2014-05-24T12:04:14+07:00
Sejajar berarti m₁ = m₂

3x + y - 5 = 0
y = -3x + 5
m₁ = -3 = m₂

cari titiknya sekarang

y = x² + 5x + 6
y' = 2x + 5 = 0
2x = -5
x = -5/2

y = x² + 5x + 6
y = (-5/2)² + 5(-5/2) + 6
y = -1/4

persamaan garis singgung

y-y₁ = m (x-x₁)
y + 1/4 = -3 ( x + 5/2 )
y + 1/4 = -3x - 15/2
y = -3x - 31/4