notes 9 18 13

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Notes 9.18.13 Your notes need to look like my notes Is it a func:on? From a table Is there a one to one rela:onship? Does each y have a unique x? From a graph Does the graph pass the Ver:cal Line test? When a ver:cal line is passed over the graph from leH to right, does the line only touch the graph at one place at a :me? Is there a constant rate of change? From a table From a graph Is the graph or interval a straight line? A straight line represents a constant rate of change Func:on x y 1 3 2 6 4 9 Not a Func:on x y 1 3 2 6 1 9

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Page 1: Notes 9 18 13

Notes    9.18.13    Your  notes  need  to  look  like  my  notes    Is  it  a  func:on?      

 From  a  table  à  Is  there  a  one  to  one  rela:onship?    Does  each  y  have  a    unique  x?  

             

 From  a  graphà  Does  the  graph  pass  the  Ver:cal  Line  test?    When  a    ver:cal  line  is  passed  over  the  graph  from  leH  to  right,  does  the  line  only    touch  the  graph  at  one  place  at  a  :me?  

               Is  there  a  constant  rate  of  change?  

 From  a  tableà                      

 From  a  graphà  Is  the  graph  or  interval  a  straight  line?    A  straight  line    represents  a  constant  rate  of  change  

Func:on  

x   y  

-­‐1   3  

2   6  

4   9  

Not  a  Func:on  

x   y  

-­‐1   3  

2   6  

-­‐1   9