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2y=-7/4x+49/4-2
-------------------------kalikan 4
8y=-7x+49-8
8y=-7x+41
y=-7/8x+41/8 --------- ingat y=mx+c, maka -7/8 adlh gradiennya
(-2,-3)
y-y1=m(x-x1)
y+3=-7/8(x+2)
y=-7/8x-14/8-3
-----------------------kalikan 8
8y=-7x-14-21
8y=-7x-35