tentukan gradien garis berikut: 1.y=-2×-3 2.y=3×-1 3.×+2y=1 4.-3×+5y=0

1. y= -2x-3
m = -a/b = -(-2)/-1 = -2
2. y = 3x-1
m = -a/b = -3/-1 = 3
3. x + 2y =1
m = -a/b = -1/2
4. -3x +5y =0
m = -a/b = -(-3)/5 = 3/5