Sunday, February 8, 2015

What's Your Function: Brenna Carse

Graph of Crude Oil Prices From 2004-2014 (Source: NASDAQ)

Part A:

  • This graph represents the prices of crude oil over the past ten years.
  • This relationship is a function because each input is paired with exactly one output (each year only lists one price).  This graph passes the vertical line test.
  • This function is not a linear function because the average rate of change between points is not constant.
  • This function is not a mathematical model because the price of crude oil is not dependent upon the year.

Graph of SPP scores and % of Economically Disadvantaged Students 

Part B:
  • This graph displays the relationship between the percentage of economically disadvantaged students in certain schools in Pennsylvania and their corresponding School Performance Profile score in the 2012-2013 school year. (Source: Pennsylvania School Performance Profile) 
  • This relationship is not a function because the input values correspond to more than one output value.  This relationship does not pass the vertical line test.  
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6 comments:

  1. AnonymousFebruary 9, 2015 at 5:07 AM

    Morning, Brenna! I prefer your source, and you use mathematical language to explain why this is or not a function. very clear and logical!

    ReplyDelete
  2. AnonymousFebruary 10, 2015 at 10:21 AM

    Your explanations are great, and I particularly love the "non-function" example. The scatter plot is a great choice!

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  3. AnonymousFebruary 12, 2015 at 11:24 AM

    Your answer is clear and correct, and the graphs are interesting. I like it !

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  4. AnonymousFebruary 12, 2015 at 3:32 PM

    Brenna, I like your choice of the scatter plot it is captivating and made me want to know about the information!

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  5. AnonymousFebruary 12, 2015 at 6:04 PM

    you almost tricked me with the first graph because I thought it wouldn't pass the vertical line test, but then I realized each point would go by each year. good job!

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  6. lilnesscapadesMarch 15, 2015 at 2:13 PM

    brenna,

    i love your second graph! it's so pretty! also an interesting topic as i am quite passionate about the education of disadvantaged students.

    your first example is explained well, but the only thing you forgot to include was to represent the function using function notation as it says in the blog instructions for this assignment.

    other than that, great job!

    professor little

    ReplyDelete

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