Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x=10.

y=6 when x=5
Write a direct variation equation that relates x and y.
y=

y = 12

Step-by-step explanation:

from the question,

y varied directly with x .

mathematicaly  

y ∝ x

y = kx  where k is constant of proportionality

k = y/x

to find k, given that  y = 6 , x = 5

so,

k = 6/5

k = 1.2

inorder to find the value of y when x = 10

from y = kx

y = 1.2 x 10

y = 12

also,

the  direct variation equation that relates x and y is

y = kx direct variation equation that relates x and y