The variables x and y vary directly. if one pair of the values is x = 3 and y = 12, write an equation that shows the relationship between x and y.

Question

Payne

Mathematics

20 January, 19:01

The variables x and y vary directly. if one pair of the values is x = 3 and y = 12, write an equation that shows the relationship between x and y.

+3

Answers (2)

Know the Answer?

Kaitlyn · Answer 1

The variables x and y vary directly. if one pair of the values is x = 3 and y = 12, write an equation that shows the relationship between x and y.

Jaden House · Answer 2

If they vary directly then they increase at the same amount

This can be written out with the equation

y/x=k k being the constant of the variation

In this case 12/3=4 the constant is 4

So you can say y=4x