Tentukan nilai m agar garis yang melalui titik A dan B berikut mempunyai gradien 2.
A (2m, m) dan B (m+2, -4)
A (2m, m) dan B (m+2, -4)
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Verified answer
2 = (-4 - m) / (m - 2m)2 = (- 4 - m) / (- m)
2(- m ) = - 4 - m
- 2m = - 4 - m
- 2m + m = - 4
- m = - 4
m = 4