Access Point #: MAFS.912.F-BF.2.AP.4cArchived Access Point

Essential Understandings

Concrete:

• Identify a function.
• Identify the x and y variables.
• Identify the domain and range of a function.
• Identify the inverse of a function.
  
  
• Use tools (patty paper, transparencies, mirror, mira, graphing calculator) to reflect the original function.
• Identify an expression for a given function using manipulatives or a graph.
• Use paper folding to determine the mirror image.
• Use the horizontal line test to determine if a function has an inverse that is a function.
  
  
• Use a table to determine if the x and y values are inverses of each other.
  
  

• Understand the following concepts and vocabulary: domain, range, inverse, function, input, output, graph coefficient, slope, reflect, reflection, mirror image.
• Understand that for a function, every domain (x) value there is only one range (y) value.
• Understand that the inverse function creates a mirror image of the original function.
  
  
• Understand that the domain (x) and range (y) values of the original function are opposites of each other in the inverse function.
  
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