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Verified answer
Misal Garis Tersebut melalui (0 , 1) dan(-3 , 0) ➙ daerah negatif
Maka
m = Δy / Δx
m = (0 - 1) / (-3)
m = ⅓
Persamaannya
y = mx + c , ambil (0 , 1)
1 = (⅓ × 0) + c
c = 1
Persamaannya adalah
y = ⅓x + 1
y = ax + b
a > 0 , b > 0