Question

y varies directly as x. When y = 15, x = 4. Find the constant of variation and use it to determine the value for y when x = 6.

Answer 1

set it up as a proportion.

Answer 2

Then, wouldn't you do cross mulitply & divide ?

Answer 3

y=k*x

Answer 4

k is a constant that vary

Answer 5

15=k4, k=4/15, then use it in the y=4/15*6

Answer 6

k=15/4

Answer 7

then you do 15/4 * 6

Answer 8

yep, sorry wrong calculation