Tlong jawab nmr 12.13.14

No. 14
diketahui titiknya (-1 ; 0) dan (0 ; 4)
y – y1 = ((y2 – y1)/(x2 – x1)) (x – x1)
y – 0 = ((4 – 0)/(0 + 1)) (x + 1)
y = 4(x + 1)
y = 4x + 4
4x – y > -4