a(x)=4/3 x -2
K=4/3 , d= - 2
x y
3 2
-3 -6
d(x)= -1/2 x -1/2
k= -1/2, d= -2 d(-1)=0 si d(1)= -1 devine -k+d= 0 si k+d=-1
x y
-1 0
1 -1
g(x) = -5x -12
k = -5, d= -12 g(-3)= 3 si g(-2) = -2 devine -3k+d = 3 si -2k+d=-2
x y rezolvand afli k si d
-3 3
-2 -2