Tentukan gradien yang tegak lurus c. 2x +5y+12=0 d.8x —4y +12=0 e. 3/2y+4/3x=2

c. 2x + 5y + 12 = 0
2x + 5y = 12
m1 = -a/b
= -2/5
m1 × m2 = -1
-2/5 × m2 = -1
m2 = -1/-2/5
= -1 × -5/2
m2 = 5/2
d. 8x - 4y + 12 = 0
8x - 4y = 12
m1 = -a/b
= -8/-4
m1 = 2
m1 × m2 = -1
2 × m2 = -1
m2 = -1/2
e. 3/2y + 4/3x = 2
m1 = -a/b
= -4/3/3/2
= -4/3 × 2/3
= -8/9
m1 × m2 = -1
-8/9 × m2 = -1
m2 = -1/-8/9
= -1 × -9/8
m2 = 9/8