tentukan persamaan garis yang melalui titik (2.5) dan tegak lurus dengan garis berikut A. Y=-½x+6 B. 3/2y-x=4 tolong banget

A.
m = -1/2

m1 x m2 = -1
m2 = -1 / (-1/2)
      = 2

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

B.
3/2y-x=4
3/2y=4+x
y= (4/(3/2)) + x/(3/2)
  = 8/3 + 2/3 x

m = 2/3

m1 x m2 = -1
m2 = -1 / 2/3
      = -3/2

y-5 = -3/2 (x-2)
y = -3/2 x + 3 +5
y = -3/2 x + 8
2y = 16 - 3x