Gf intersectat OX = y=0, f(x)=2x-4=0=2x=0+4=x=4\2=2,A(2;0)
Gf intersectat cu OY =x=0, f(0)=2•0-4=-4, B(0;-4).
AB patrat = BC patrat + AC patrat = -4 patrat = BC patrat +2 patrat=
BC patrat = -8-4=-12
BC = √-12= -2√3
A= l patrat = -2√3 patrat = -12
P = -4+(-2√3)+2=-2-2√3 graficul il faci tu ca eu nu pot coroana