Question

Fan+Medal!

Do the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the table.

x y
3 24
9 8
12 6

direct; y = 8x
inverse; xy = 8
inverse; xy = 72
direct; y = 72x

Answer 1

I think data that represent an inverse variation, have to check this equation:
x*y=k.
So substituting your numerical data, we have:
x*y=24*3=9*8=12*6=72

Answer 2

so k=72

Answer 3

I wasnt sure ....I have this slide that might help?

Answer 4

yes it can!

Answer 5

So is it c?

Answer 6

that's right!

Answer 7

Alright thanks! :D

Answer 8

thanks!:)