Summary of Graphing Techniques
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Transcript of Summary of Graphing Techniques
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Summary of Graphing Techniques
To Graph: Draw graph of f and: Functional Change to f(x)
Vertical shifts
( ) , 0y f x k k Raise graph of f by k units Add k to each y-coordinate.
( ) , 0y f x k k Lower graph of f by k units Subtract k from each y-
coordinate.
Horizontal shifts
( ), 0y f x c c Shift graph of f left c
units
Subtract c from each x-
coordinate
( ), 0y f x c c Shift graph of f right c
units Add c to each x-coordinate
Compress or stretch
( ), 0y af x a Stretch vertically if 1a ,
or compress if 0 1a
Multiply each y-coordinate
by a
( ), 0y f ax a
Stretch horizontally if
0 1a , compress if
1a
Multiply each x-coordinate
by 1 a
Reflection about the x-axis
( )y f x Reflect graph of f about
x-axis
Multiply each y-coordinate
by 1 .
Reflection about the y-axis
( )y f x Reflect graph of f about
the y-axis
Multiply each x-coordinate
by 1 .