cari gradiennya semuanya .....................................................

Garis AB
Δy = 2 petak
Δx = 5 petak
m = Δy / Δx = 2/5

Garis CD
Δy = -1 petak
Δx = 5 petak
m = Δy / Δx = -1/5

Garis EF
Δy = -5 petak
Δx = -1 petak
m = Δy / Δx = -5/-1 = 5

Garis GH
Δy = -5 petak
Δx = 2 petak
m = Δy / Δx = -5/2

Garis IJ
Δy = 0
Δx = 5
m = Δy / Δx = 0 / 5 = 0

Garis KL
Δy = -4
Δx = 0
m = Δy / Δx  = -4/0 = tidak terdefinisikan