Question

Persamaan garis yg melalui titik (-3, 4) dan tegak lurus garis 2x - 5y + 7 = 0 adalah .. Pake cara ya

Answer 1

(-3 = x1 ,4 = y1 ) -> pers 2x -5y + 7 = 0
m1 = - 2/-5 = 2/5 tegak lurus m2 = 5/2

y - y1 = m2 (x - x1)
y -(-3) = 5/2 (x - (-3))
y +3 = 5/2x + 15/2
y = 5/2x + 7 1/2 -3
y = 5/2 x + 4 1/2