Question

Gambar grafik cartesius
dari x+y+1=0 dan x-y-3=0

Answer 1

X+y+1=0 ⇨ x+y=-1 Jika x=0 maka x(0)+y=-1 Y=-1 Jika y = 0 maka x+y(0)=-1 X=-1 (X,y) = (-1,-1) X-y-3=0⇨x-y=3 Jika x=0 maka x(0)-y=3 -y=3 ⇨y=-3 Jika y=0 maka x-y(0)=3 X=3 (X,y)=(3,-3)