creativecam (+11)
x^2 - y^2 -4x - 2y + 7= 0 Hiperbole
(x^2 -4x) - (y^2 - 2y) + 7 = 0
(x-2)^2 - (y-1)^2 - 4 - 1 + 7= 0
(x-2)^2 - (y-1)^2= -2
((x-2)^2)/2 - ((y-1)^2)=-1
Ar gera gavau kanonine israiska?. Po to reikes dar grafika nubrezti.
b) x2- 6x + 8y - 47=0 Parabole
(x2 - 6x) + 8y - 47=0
((x-3)^2 - 9) + 8y - 47=0
(x-3)^2= ..... ir kaip toliau ?
Justaser (+912)
(x^2 -4x) - (y^2 - 2y) + 7 = 0
čia blogai į skliaustus įkėlei. Juk turi būti y^2+2y.
creativecam (+11)
na tada pirmoji kanonine israiska gaunasi ((x-2)^2)/2 - ((y+1)^2)/2=-1.
o del antros ?
Justaser (+912)
(x-3)²+8y-56=0
(x-3)²=-8y+56
(x-3)²=-8(y-7)
va
creativecam (+11)
jei gali paaiskink iskur tas 56 atsirado ?
Justaser (+912)
creativecamjei gali paaiskink iskur tas 56 atsirado ?
x²-6x+8y-47=0
(x²-6x+9-9)+8y-47=0
(x-3)²-9+8y-47=0
(x-3)²+8y-56=0
.... .... ....
creativecam (+11)