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Df=R (0,0)
(1,-4) (-1,4) (2,-2)
b) y=√x
Df=<0,+oo) (0,0)
(1,1) (4,2) (9,3)
c)y=x-2
Df=R (0,-2)
(1,-1) (2,0) (3,1)
d) y=√3-x ( - x tez jest pod pierwiastkiem )
Df=(-oo,3> (0,√3)
(2,1) (-1,2) (-6,3)
e) y=x²-1
Df=R (0,-10)
(1,0) (2,3) (3,8)
f)y=2x²+3
Df=R (0,3)
(1,5) (2,11) (-1,5)