SOLUTION: If a stock price goes from $10 to $12 from January 1st to January 31, and from $12 to $9 from February 1st to February 28th,is the price change a straight line? How can I use

Question 1039300: If a stock price goes from $10 to $12 from January 1st to January 31, and from $12 to $9 from February 1st to February 28th,is the price change a straight line?
How can I use two "pieces" of lines to describe the movements from the beginning of January to the end of February? Please help.
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
probably not, but it can be modeled as a straight line if that's the way you want to show it.

let x represent the beginning end of the previous month and the beginning of the next month.

that is essentially saying 2400 on january 31 (using 24 hour clock) is the same time point as 0000 on february 1.

if the only points you are showing are at the beginning of each month (and also at the end of the previous month since they are the same point), then connecting them with a line is acceptable to show continuity from one time point to the other.

the graph will look something like this.
the first comment should have said December 31/January 1.

$$$

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