Question

If y varies directly with x and x=-16 when y = 28,what is the direct variation equation.

Answer 1

so i will try explain it to you

directly variation mean a variation in the same way

for example

x = -16 and y = 28 when will be doubled x so than x = -32 in this way y = 28 +28 = 56 doubled the same like x

hope you understand me

Answer 2

yeah sorta but yeah

Answer 3

so in this way after this above my example can you write the direct variation equation ?

Answer 4

how will be this equation ?

Answer 5

may be this right

x = y
2x = 2y
3x = 3y

???

or maybe

x = 1/y

or

1/x = y

?

Answer 6

please read my above wrote example and than you understand so will get the right correct equation easy

Answer 7

well i have some answer that i think are right but its 4

Answer 8

4 equations ?

Answer 9

you need just 1

Answer 10

i will show you

Answer 11

ok

Answer 12

y=-7/4x
y=12x
y=7/4x
28=-16k

Answer 13

here

Answer 14

i know that one of them are right but i dont know

Answer 15

x=-16 when y = 28

direct variation mean the same variation of every terms

-16x = 28y

how can you separate the y in a part - side ?

Answer 16

so its 28=-16

Answer 17

do you see this true ?

Answer 18

yeah

Answer 19

i think

Answer 20

for you is indifferent than you have 28 dollars or you need give to somebody 16 ?

Answer 21

x=-16 when y = 28

28y = -16x so to separate the y in on a side you divide both sides by 28
so in this way what will get ?

Answer 22

ok thx

Answer 23

i am going to close this now

Answer 24

really ? why ?

Answer 25

you helped me and now i get it

Answer 26

ok than what is the right answer equation ?