Zadanie w załaczniku.
-3x+y-4=0
y=3x+4
a=3
y=ax+b
y=3x+b
-4=3*(-1)+b
b=-4+3
b=-1
y=3x-1
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-3x+y-4=0
y=3x+4
a=3
y=ax+b
y=3x+b
-4=3*(-1)+b
b=-4+3
b=-1
y=3x-1