SOLUTION: Which of the following is an example of direct variation? 1.) the area of any square compared to the length of its side 2.) the perimeter of any square compared to the length of

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Question 143046: Which of the following is an example of direct variation?
1.) the area of any square compared to the length of its side
2.) the perimeter of any square compared to the length of its side
3.) the time it takes to drive 500 miles compared to speed
4.) the temperature compared to the time of day
I think the answer is number 3 but I'm not completely sure.

Answer by rapaljer(4667) About Me  (Show Source):
You can put this solution on YOUR website!
This one is tricky! Time it takes to get a distance of 500 miles down the road varies INVERSELY as the speed, since the faster you drive the LESS time it takes to get there. The slower you drive, the MORE time it takes to get there.

The correct answer is 2. The perimeter of a square varies DIRECTLY as the length of the side, since the longer the side, the greater the perimeter!

R^2