Question

It is given that y varies directly as x. If y = 5 when x = 4 determine the constant of variation.


A)

4
5



B)

5
4



C)
4


D)
5
@confluxepic

Answer 1

equation for direct variation y = kx
where k is constant of variation

Answer 2

for direct variation the equation is
\[y = k \times x\] k is called the variation constant

to find k, substitute y = 5 and x = 4

the solve for k

Answer 3

1.25

Answer 4

thats correct, but you need to write it as a improper fraction

Answer 5

Sorry I am not good at that at all.

Answer 6

equation is y = kx
so replace y and x by their values

Answer 7

I did that but I can not put it in a fraction

Answer 8

let me know what you get after did
how did u substitute x and y values

Answer 9

that**

Answer 10

1.25

Answer 11

@Nnesha

Answer 12

thanks
okay how did you got 1.25 what did u put into the calculator ??

Answer 13

I put 5 divided by 4 and 1.25 came up

Answer 14

yes right 5/4
\[\huge\rm 5 = k \times 4\]
to solve for k you have to divide both side by 4

Answer 15

\[\huge\rm 1.25 = \frac{ 5 }{ 4 }\]

Answer 16

Ok so 1.25= k x 1

Answer 17

So @Nnesha 1.25 is the answer? Of coarse in fraction

Answer 18

5/4

Answer 19

yes right 5/4 is in fraction form same as 1.25

Answer 20

Ok thank you!

Answer 21

my pleasure !!

Answer 22

I have another. I'll tag you if you want to help

Answer 23

i'll try

Answer 24

ok thank you!