Question

(Metals!!!!!!!!!!!)

Determine whether the relationship is an inverse variation, a direct variation, or neither. Give 2 other ordered pairs that could continue the data set.

Answer 1

Hmm. To see if it is an inverse variation, use the formula: k = xy
In which k is the change of variation.
So try that.

Answer 2

To see if it is a direct variation, sue the formula: y = k/x

If you try that formula to each of the 'set' and none of it work, than it's neither. ^_^

Answer 3

use*

Answer 4

@connor_ I already solved this.

Answer 5

@primeralph You didn't read my question correctly.

Answer 6

http://openstudy.com/users/connor_#/updates/52ade9d4e4b0f72fdcf79266

Answer 7

I misread it. METAL! METAL IS BETTER THAN MEDAL!!!

Answer 8

@connor_ I did.

Answer 9

"whether the relationship is an inverse variation, a direct variation, or neither." @primeralph

Answer 10

Yes, I did that. It's up to you to look at the formula I generated and state it.

Answer 11

Ah. When I mean by set, I meant ordered pair. :)
Ordered pair is a column that contains x and y value.
For example, 10 & 9, 15 &6, 18 & 5, 20 & 4.5.

Answer 12

@GoldPhenoix Did you found out to solve it?

Answer 13

Well, I know the answer, but I can't give it to you. You need to do it by yourself to learn. ^_^

Answer 14

@GoldPhenoix Me too, I know what it is. What is the answer?

Answer 15

What do you think it is?

Answer 16

Inverse proportional and (10, 15), (18,20), (9,6) @GoldPhenoix

Answer 17

Inverse variation*. Yes, good job!

Answer 18

*variation.

Answer 19

@GoldPhenoix So, get I get the ordered pairs wrong?

Answer 20

Hmm. Not quite, after re-reading it. You're supposed to give 2 OTHER ordered pairs.
So

Answer 21

Use the inverse variation formula to help you get 2 other ordered pairs.

Answer 22

@GoldPhenoix My mistake.

Answer 23

Well, I know it's the varitaton but i don't know the pairs

Answer 24

Like I said, use the formula to help you: k = xy
We know that k = 90.
90 = xy

Find 2 other pairs of number that can multiply up to 90.

Imma be nice to you, let x = 90.
What would y be?

Answer 25

@GoldPhenoix Um 10 ?

Answer 26

To help visualize, if x = 90.
The equation would look like: 90 = 90y.
You want to find y.
So you must do inverse operation.
The reciprocal of multiplication is division.
So 90 divided by 90 = ?

Answer 27

1

Answer 28

Great. So y = 1.
You have one ordered pair: (90, 1)
You need 1 more.

So let say x = 30.
What would y be?

Answer 29

also 1 ?

Answer 30

Nope. The equation 90 = xy
If x = 30, then the equation would look like:
90 = 30y
We want y.
The reciprocal of multiplication is division.
So 90 divided by 30 = ?

Answer 31

3

Answer 32

Great. Now you have the last ordered pair: (30, 3)

So the 2 ordered pair we came up with is: (90, 1) and (30, 3).
I hope this help! :)

Answer 33

I changed my mind, I prefer medal over metal. C:

Answer 34

@GoldPhenoix So it is "Inverse Variation" + "(90, 1) and (30, 3)"?

Answer 35

Correct! :)