Question

determine if the equation is a direct variation equation: XY=6

Answer 1

In a direct variation, if x gets bigger, y gets bigger also. Is that true for xy = 6?

Answer 2

It does not say, XY= 6 just has to be adjusted to match the formula y=kx . 6 being the k

Answer 3

You have to figure it out:
If x = 1 and y = 6 then xy=6 is true
if x = 2 and y = 3 then xy = 6 is true
x went up from 1 to 2
y went from 6 to 3
Did y go up?

Answer 4

So you think when y changes from 6 to 3 that it went up?

Answer 5

No, because it is less.

Answer 6

So is it a direct variation or not?

Answer 7

Does direct mean it goes down ?

Answer 8

Direct means if x goes up, y goes up. If x goes down, y goes down.