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Cari gradiennya m: 0-(-2)/5-0 = 2/5
Persamaannya adalah memakai rumus: y-y1=m(x-x1)
y-(-2) = 2/5(x-0)
y+2 = 2/5 x ------> kedua ruas dikali 5:
5y+10 =2x
2x-5y = 10