Determini mijlocul segment [BC]>Fie M(mx,my) acest ,mijloc.Determini pe mx si my
mx=(xc+xB)/2=(5+3)/2=4
my=(yB+yC)/2=(2+8)/2=5
M(4,5)
SCrii ecuatia dreptei AM
(y-ya)/(ym-yA)=(x-xA)/(xm-xA0
(y-`1)/(5-1)=(x-1)/(4-1)
(y-1)/4=(x-1)/3
y-1=4/3(x-1)
y=4x/3-4/3+1
y=4/3x-1/3