Question

.Determine whether y varies directly with x. If so, find the constant of variation k and write the equation .please provide detail.

Answer 1

Is there any other given info? We won't be able help you from that information alone.

Answer 2

yes sorry

Answer 3

this will probably help
http://www.algebra.com/algebra/homework/Rational-functions/Rational-functions.faq.question.7326.html

Answer 4

The formula for direct variation is y = kx. In order for there to be a direct variation, both x and y must be increasing.

Answer 5

Or both decreasing.

Answer 6

To find k, insert one set of (x,y) values into the formula, then solve for k.

Answer 7

Or both decreasing.

Answer 8

The formula for direct variation is y = kx. In order for there to be a direct variation, both x and y must be increasing.

Answer 9

Is there any other given info? We won't be able help you from that information alone.

Answer 10

no that's all the info she gave

Answer 11

hi

Answer 12

Hi Venus XD

Answer 13

So...@DAshingNii , did you figure out the value of k yet?

Answer 14

Okay, that's weird

Answer 15

lol

Answer 16

@DAshingNii

Answer 17

There we go

Answer 18

Both x and y are increasing, so we can use the formula for direct variation y = kx to find the value of k by inserting one set of points. Let's insert the point (4, 6.4) into the formula:

6.4 = 4k

To find k, simply divide both sides by 4:

6.4/4 = k

k = ?