Rozwiąż układ rowńąn
-4x+2y=10
5x+3y=15
Do jakich wartosći parametrii m funkcja jest rosnaca
f(x)=(m+2)x+7 nad x jest m
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-4x +2y =10 |:2
5x+3y=15
y=5+2x
5x+3(5+2x)=15
y=5+2x
5x+15+6x=15
y= 5+2x
11x+15=15
y= 5+2x
11x=15-15
y=5+2x
11x=0
x=0
y=5+2*0
y=5
x=0
zad.2
m+2>0
m>-2