Question

i need some help: does anybody know what direct variation is

Answer 1

http://www.freemathhelp.com/direct-variation.html

(This is taken from the website above)


In simpler terms, that means if A is always twice as much as B, then they directly vary. If a gallon of milk costs $2, and I buy 1 gallon, the total cost is $2. If I buy 10 gallons, the price is $20. In this example the total cost of milk and the number of gallons purchased are subject to direct variation -- the ratio of the cost to the number of gallons is always 2.

Answer 2

okay thanks