Does anybody understand this ? i need

The y axis is the vertical axis
the original line is intersecting y axis at y=3
just take the line and draw another line paralell to it but move it down 1 unit so it intersects the y axis at y=2

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.