They are similar by number. But they are not perpendicular. 3x+4y=12 gives you a negative slope. But 4x-3y gives you a positive slope. So they would be crossing each other if put together. This means that Sadia is correct and Henri isn’t. Show all work: 4x-3y=12 4x-3y+3y=12+3y 4x=3y+12 4x/4=3y+12/4 X=3/4y+3
Yes it did occur it was just a very long time ago. As the earth grew and developed the countries separated and that is why they are spread all over the world now. Hope this helps.
