Graphical Transformations

With practice, you will use the ideas from Section 1.6 to construct by hand graphical representations of more complicated function from the 12 Basic Functions. This will help you get rough sketches by hand of things like:

"GraphicalTransformations_1.gif" as a transformation of "GraphicalTransformations_2.gif"using shift up of 17 units followed by shift to right of 2 units.

y=2/(x+3) as a trasnformation of y=1/x using a shift left of 3 units followed by a vertical stretch of 2 units.

I am using a computer to get the plots, but ultimately you would be doing this by hand.

First Example: Absolute Value Basic Function

Original Function

In[76]:=

"GraphicalTransformations_3.gif"

Out[77]=

"GraphicalTransformations_4.gif"

Vertical Shift

In[78]:=

"GraphicalTransformations_5.gif"

Out[79]=

"GraphicalTransformations_6.gif"

Horizontal Shift

In[80]:=

"GraphicalTransformations_7.gif"

Out[81]=

"GraphicalTransformations_8.gif"

Vertical Stretch

In[82]:=

"GraphicalTransformations_9.gif"

Out[83]=

"GraphicalTransformations_10.gif"

Horizontal Compression

In[84]:=

"GraphicalTransformations_11.gif"

Out[85]=

"GraphicalTransformations_12.gif"

Reflection about x-axis

In[86]:=

"GraphicalTransformations_13.gif"

Out[87]=

"GraphicalTransformations_14.gif"

Reflection about y-axis

In[88]:=

"GraphicalTransformations_15.gif"

Out[89]=

"GraphicalTransformations_16.gif"

Second Example: Cubing Basic Function

Original Function

In[90]:=

"GraphicalTransformations_17.gif"

Out[91]=

"GraphicalTransformations_18.gif"

Vertical Shift

In[92]:=

"GraphicalTransformations_19.gif"

Out[93]=

"GraphicalTransformations_20.gif"

Horizontal Shift

In[94]:=

"GraphicalTransformations_21.gif"

Out[95]=

"GraphicalTransformations_22.gif"

Vertical Stretch

In[96]:=

"GraphicalTransformations_23.gif"

Out[97]=

"GraphicalTransformations_24.gif"

Horizontal Compression

In[98]:=

"GraphicalTransformations_25.gif"

Out[99]=

"GraphicalTransformations_26.gif"

Reflection about x-axis

In[100]:=

"GraphicalTransformations_27.gif"

Out[101]=

"GraphicalTransformations_28.gif"

Reflection about y-axis

In[102]:=

"GraphicalTransformations_29.gif"

Out[103]=

"GraphicalTransformations_30.gif"

Third Example: Inverse Basic Function

Original Function

In[123]:=

"GraphicalTransformations_31.gif"

Out[124]=

"GraphicalTransformations_32.gif"

Vertical Shift

In[125]:=

"GraphicalTransformations_33.gif"

Out[126]=

"GraphicalTransformations_34.gif"

Horizontal Shift

In[127]:=

"GraphicalTransformations_35.gif"

Out[128]=

"GraphicalTransformations_36.gif"

Vertical Stretch

In[129]:=

"GraphicalTransformations_37.gif"

Out[130]=

"GraphicalTransformations_38.gif"

Horizontal Compression

In[131]:=

"GraphicalTransformations_39.gif"

Out[132]=

"GraphicalTransformations_40.gif"

Reflection about x-axis

In[133]:=

"GraphicalTransformations_41.gif"

Out[134]=

"GraphicalTransformations_42.gif"

Reflection about y-axis

In[135]:=

"GraphicalTransformations_43.gif"

Out[136]=

"GraphicalTransformations_44.gif"

Fourth Example: Combining multiple transformations

Original Function

In[143]:=

"GraphicalTransformations_45.gif"

Out[144]=

"GraphicalTransformations_46.gif"

Vertical Shift of 3 units up

In[153]:=

"GraphicalTransformations_47.gif"

Out[154]=

"GraphicalTransformations_48.gif"

Vertical Shift of 3 units up followed by
Horizontal Shift of 2 units to the left

In[155]:=

"GraphicalTransformations_49.gif"

Out[156]=

"GraphicalTransformations_50.gif"

Vertical Shift of 3 units up followed by
Horizontal Shift of 2 units to the left followed by
Reflection about x axis

In[167]:=

"GraphicalTransformations_51.gif"

Out[168]=

"GraphicalTransformations_52.gif"

The Algebraic representation of the final function

In[169]:=

"GraphicalTransformations_53.gif"

Out[169]=

"GraphicalTransformations_54.gif"

In[170]:=

"GraphicalTransformations_55.gif"

Out[170]=

"GraphicalTransformations_56.gif"

Fifth Example: Combining multiple transformations for "GraphicalTransformations_57.gif":
shift to right 5 units, then
compress horizontally by 3 units, then
reflect about y-axis.

Original Function

In[175]:=

"GraphicalTransformations_58.gif"

Out[176]=

"GraphicalTransformations_59.gif"

Shift 5 units to right

In[177]:=

"GraphicalTransformations_60.gif"

Out[178]=

"GraphicalTransformations_61.gif"

then Compress horizontally by 3 units

In[181]:=

"GraphicalTransformations_62.gif"

Out[182]=

"GraphicalTransformations_63.gif"

then reflect about the y-axis

In[185]:=

"GraphicalTransformations_64.gif"

Out[186]=

"GraphicalTransformations_65.gif"

The algebraic representation of the final function is

In[209]:=

"GraphicalTransformations_66.gif"

Out[209]=

"GraphicalTransformations_67.gif"

Sixth Example: Combining multiple transformations for f(x)=1/x to sketch y = 5/(x + 3)

Original Function

In[187]:=

"GraphicalTransformations_68.gif"

Out[188]=

"GraphicalTransformations_69.gif"

The algebraic representation of the final function is

In[208]:=

"GraphicalTransformations_70.gif"

Out[208]=

"GraphicalTransformations_71.gif"

Shift 3 units to right

In[200]:=

"GraphicalTransformations_72.gif"

Out[201]=

"GraphicalTransformations_73.gif"

then vertical stretch of 5 units

In[206]:=

"GraphicalTransformations_74.gif"

Out[207]=

"GraphicalTransformations_75.gif"

Spikey Created with Wolfram Mathematica 6