September 2018 1 14 Report

Oblicz delte i wskaż parabole:

a)y=3x(do kwadratu)=x+5

b)y=x(do kwadratu)-7x+10

c)y=x(do kwadratu)-8x+16

wzór:delta=b(do kwadratu)-4 a * c

parabola:a = + w góre

a = - w dół


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