A.
http://www.gallup.com/poll/116479/barack-obama-presidential-job-approval.aspx
This poll focuses on President Obama's approval rating from January 1, 2013 to December 29, 2013. This situation would be considered a function because each input (the week the poll is taken) has only one output (the percent approval rating). This would also be considered a mathematical model because Obama's approval ratings would depend on event throughout the world and his policy making. The data gathered from this poll, if presented in a chart, would not be a linear model because there is no consistent rate of change over the course of the year when data was collected.
B.
http://www.huffingtonpost.com/2012/05/16/most-common-birthdays-infographic_n_1521426.html
This article shows the distribution of birthdays throughout the United States. In order for something to be classified as a function there can be only one output for every input. This is an example of something that is not a function because each input (the month and day) has multiple outputs because multiple people were born on that day.
I think the distribution of birthday is interest idea! I haven't thought that this could apply to not a function.
ReplyDeleteThe concept of so many birthdays in the year has always been both random and interesting! That was very col to see if it was a function or not.
ReplyDeleteI really liked how you used the topic of birthdays to explain a situation that is not a function. It is really interesting and simple to understand. There are many things in life that are not functions, and not necessarily related , which i never thought about before.
ReplyDeleteThe birthday idea was very clever. Made me think twice!
ReplyDeleteyasmin,
ReplyDeleteboth of your examples are perfect! you did a wonderful job explaining the relationships using mathematical vocabulary. i am in agreement with the rest who commented here, that the birthday example is very creative! kudos!
professor little
I used the same analysis, looking at President Obama's approval ratings! I definitely think that that is a very interesting way to connect what we learned in class with the real world.
ReplyDelete