Question

is 2y=5x+1 a direct variation

Answer 1

does the point (0,0) lie on this line?

Answer 2

http://www.youtube.com/watch?v=RBLjdzqyPl4

Answer 3

a direct variation has the form
y= k x
where k is some number
when you add something like +1, it is no longer a direct variation
or as jim pointed out, 0,0 is not a solution, so it is not a direct variation