Direct Variation Question 3 with Solutions Last week, I went over direct variation, and I gave you three direct variation problems to try on your own. You can see that post here: Direct Variation Today I would like to give a solution to the last of those three problems. You can see solutions to the first two problems here: Q1 Q2 Example: If y is directly proportional to x, which of the following could express y in terms of x ? A) 7x B) x7 C) x + 7 D) 7/x Try to solve the problem yourself before checking the solutions below. Solution: Since is directly proportional to , we have that is a constant times . The only answer choice that satisfies this requirement is choice A. More Problems with Explanations If you are preparing for the SAT, ACT, or an SAT math subject test, you may want to take a look at the Get 800 collection of test prep books. And if you liked this article, please share it with your Facebook friends: Comments comments