Question

If y varies directly as x, and y = 25 as x = 5, find y for the x-value 7.

Answer 1

do the same?

Answer 2

now here
y=kx just find k bu putting the values of x and y

Answer 3

here 25=k*5 or k=5
thus y=5x
now if x=7 then y=5*7=35

Answer 4

for direct variation y= kx
for inverse variation y=k/x

Answer 5

You're the man dude. Freaking thanks!