September 2018 1 34 Report
Diketahui garis L1 & L2 tanpa menggambar grafik tentukanlah apakah kedua garis tegak lurus/sejajar/bersilang!
a. L1 = (2,5) & (4,9)
L2 = (-1,4) & (3,2)
b. L1 = y=2x + 4
L2 = 3x + 2y = 4
c. L1 = 2x + 4
L2 = 8x + 4y + 12 = 0
PAKAI CARA Y ...
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