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Persamaan garis lurus yang bergradien m dan melalui titik (a,b) adalah
y = m( x- a) + b
Nomor a.)
y = 6(x -3) + 5
y = 6x -18 + 5
y = 6x - 13
Nomor b.)
y = -4(x - -7) + 8
y = -4(x + 7) + 8
y = -4x -28 + 8
y = -4x - 20
Nomor c.)
y = 4(x -3) -8
y = 4x -12- 8
y = 4x - 20
Nomor d.)
y = -1/2(x -8) + 5
y = -1/2x -4 + 5
y = -1/2 x + 1
Bersyukur selalu !
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