Monday, December 6, 2021

Relations and Functions Part 2

Today We Discussed:

We expanded our discussion about relations and functions today and took a look at function notation.  Most students are intimidated by this method of representing an equation in two variables.  They are mostly comfortable with an equation of the form

y = 2x + 3 

We discussed that f(x) = 2x + 3 is just a fancy way of writing the above equation, and it can be described by saying "there is some function that uses the variable x, where the function rule is 2x+3". 

We discussed evaluating functions for given domain values, to produce range values.

DIXI-ROYD was also reinforced today.




Vocabulary:   DIXI-ROYD, function rule, evaluate function, function notation


Sections Covered in Textbook:

5-2: Relations and Functions (pages 241-246)


Resources & Tutorials:

1) What is function notation?
2) How do you find f(x) if given a value for x?

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