Question

find the variation constant and an equation of variation. where y vareies directly as x. y=40 and x = 5

Answer 1

"y varies directly as x" means\[y=cx,\]where \(c\) is some constant.

Answer 2

y vareies directly as x means y=kx so when y=40 and x = 5, k = 8

Answer 3

whats the equation of variation for y

Answer 4

As FFM said, \[40=k\cdot5.\]Solve for \(k\).

Answer 5

but what is the equation?

Answer 6

can anybody help?

Answer 7

There is no equation here, what direct variation means is already been stated above.

Answer 8

but it says that i have to state the equation of variation. like y=?

Answer 9

\(y=kx \)

Answer 10

ok thanks