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 formy = 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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