Question

Tentukan koordinat titik potong garis x + y =3 dan y = 2x-1

Answer 1

X+y=3=>y=3-x
y=2x-1
y=y
3-x=2x-1
-3x=-4
x=4/3
y=5/3
maka tp nya (4/3,5/3) :)

Answer 2

X+y =3
jika x = 0
maka y = 3
jika y = 0
maka x = 3
hp = {0,3} {3,0}
y=2x-1
-2x+y =-1
2x-y=1
jika x = 0
maka y = -1
jika y=0
maka x = 1/2
hp = {0,-1} {1/2,0}