gradien garis -4x+3y+12=0 adalah

-4x+3y+12 = 0

m = -a/b
    = -(-4)/3
    = 4/3

Garis -4x + 3y + 12 = 0
maka, a = -4, b = 3, c = 12

Gradien garis
m = -a/b
m = - (-4/3)
m = 4/3