persamaan garis 4y-5x+20=0 memiliki gradien....

[tex]4y-5x+20=0 \\ 4y = 5x - 20 \\ y = \frac{1}{4} (5x - 20) \\ y = \frac{5}{4} x - 5[/tex]
Jadi, gradiennya
[tex]m = \frac{5}{4} [/tex]

persamaan = 4y-5x+20 = 0
a = -5
b = 4
m = -a/b
    = -(-5)/4
    = 5/4