turn homework into the box-staple together and make sure both names are on sheet!! sckett
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Turn homework into the box-staple together and make sure both names are on sheet!! Sckett. Transformation of Functions. Linear Function f(x) = x. The squaring function . The absolute value function . Absolute value- distance from zero for order of operations works like ( ). - PowerPoint PPT PresentationTRANSCRIPT
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Turn homework into the box-staple together and make sure
both names are on sheet!!
Sckett
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Transformation of Functions
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Linear Function f(x) = x
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The squaring function
2)( xxf
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xxf )(The absolute value function
Absolute value- distance from zerofor order of operations works like ( )
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3)( xxf
The cubing function
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Vertical shifts up or down
Vertical Translation ( ) outsidey = x+ b shifted up b units;
y = x b shifted down b units.
2( )f x x2( ) 3f x x
2( ) 2f x x
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Horizontal shifts left or right
Horizontal Translation(inside) BACKWARDS
y = (x d) shifted right d units;
y = (x + d) shifted left d units.
22y x 22y x
2( )f x x
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Use the basic graph to sketch the following:
2( ) 5f x x 3( ) ( 2)f x x
( ) 3f x x
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Combining a vertical & horizontal shift
• Example of function that is shifted down 4 units and right 6 units from the original function.
( ) 6
)
4
( ,
g x x
f x x
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Parent Functions
y = /x/ y = x
y = x2 y = x3
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Vertical shifts ( ) ± outside( ) + up ( ) - down
Horizontal shifts (±inside ) ( + left ) ( - right)
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Reflections• The graph of f(x) is the reflection of the
graph of f(x) across the x-axis. (fold at x axis-flips it up and down)
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Use the basic graph to sketch the following:
2( )f x x|| xy
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Vertical Stretching and ShrinkingThe graph of af(x) can be obtained from the graph of f(x) by
stretching vertically for |a| > 1, or skinnershrinking vertically for 0 < |a| < 1. fatter
Multiply outside of ()
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VERTICAL STRETCH (SHRINK)
2( ) 3 4f x x
2( ) 4f x x
21( ) 42
f x x
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Horizontal Stretching or ShrinkingThe graph of y = (cx)
shrinking horizontally for |c| > 1, or skinnerstretching horizontally for 0< |c|< 1. fatter
Multiply inside of ()
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18
Which Way Will You Shift?
1. f(x) + a 2. f(x - a) 3. f(x)*a 4. f(x + a) 5. f(x) - a
A) shift down a units B) shift right a units C) shift left a units D) shift up a units E) turn upside down F) none of these
Matching -- match the letter of the list on the right with the function on the left.
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Horizontal stretch & shrink
2( ) (3 ) 4g x x
2( ) 4f x x
21( ) ( ) 43
f x x
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CHEAT SHEET• y = 3/2x + 1/ + 4
– Left 1– Shrinking horizontal by
2– Stretching vertical by 3– Up 4
• y = -3/-2x -1/ - 4• Right 1• Stretching's horizontal
by 2• Shrinking vertical by 3• Down 4
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