Question

Suppose that y varies inversely with x, and y = 6 when x = 8. What is an equation for the inverse variation?

y = x/48
y = 2x
x = y/2
y = 48/x

Answer 1

Help! (:

Answer 2

Well, The statement " y varies inversely as x means that when x increases, y decreases by the same factor. In other words, the expression xy is constant:
xy = k
where k is the constant of variation.
So, the relationship between x and y as:
y=k/x

Do with the formula :)

Answer 3

@Machida this sort of thing really confuses me.. what would the answer be? :)

Answer 4

The last one since y=1/x

Answer 5

@Thefaceless thanks!! :)

Answer 6

y = 6
x = 8
then k=xy
find the k first. :)

Answer 7

@Machida is it correct it would be the last one??(:

Answer 8

when use y=k/x , it will be y=48/x

Answer 9

Yes, because y=48/x ---> xy=48 ----> (6)(8)=48

Answer 10

Nah :)

Answer 11

@Machida are you sure??

Answer 12

Yes.

Answer 13

Im sure :)

Answer 14

@Machida so its y=48/x??

Answer 15

lol yes.

Answer 16

Yes. smh.

Answer 17

@machida (x thanks so mcuh!