Math
posted by Kirsin .
I am doing Direct Variation in math. I don't understand how to do it. It would be very helpful if you helped me with these problems:
Is each equation a direct Variation? If it is, find the constant of variation:
y=3/5x
3x+2y=0
5x+2y=9
8x+4y=12

the first one is K=3/5