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b) y=3x²-18x+23
a=3 b=-18 c=23
p=18/6=3
q=3*3²-18*3+23=3*9-54+23=27-54+23=-4
W(3,-4)
postać kanoniczna: f(x)=3*(x-3)²-4
c)y=2x²+4x+2
a=2 b=4 c=2
p=-4/4=-1
q=2*(-1)²+4*(-1)+2=2-4+2=0
W(-1,0)
postać kanoniczna: f(x)=2*(x+1)²+0
d) y=-2x²-8x-5
a=-2 b=-8 c=-5
p=8/-4=-2
q=-2*(-2)²-8*(-2)-5=-8+16-5=3
W(-2,3)
postac kanoniczna: f(x)=-2(x+2)²+3
e) y=x²+x-1/2
a=1 b=1 c=-1/2
p=-1/2
q=(-1/2)²-1/2-1/2=1/4-1/2-1/2=-3/4
W(-1/2,-3/4)
postac kanoniczna: f(x)=(x+1/2)²-3/4