1.2 - transformations of linear and absolute value functions · 2019. 8. 27. · writing...

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1.2 Transformations of Linear and Absolute Value Functions Part 1 Translations and Reflections 1.2 Transformations of Linear and Absolute Value Functions Goals : Write functions representing translations and reflections Write functions representing stretches and shrinks Perform combinations of transformations Mental Floss: Mon, Aug 26 th

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Page 1: 1.2 - Transformations of Linear and Absolute Value Functions · 2019. 8. 27. · Writing Translations of Functions b. Write a function h whose graph is a translation 2 units to the

1.2 ­ Transformations of Linear and Absolute Value Functions

Part 1 ­ Translations and Reflections

1.2 ­ Transformations of Linear and Absolute Value Functions

Goals: • Write functions representing translations and reflections

• Write functions representing stretches and shrinks

• Perform combinations of transformations

Mental Floss:  Mon, Aug 26th

Page 2: 1.2 - Transformations of Linear and Absolute Value Functions · 2019. 8. 27. · Writing Translations of Functions b. Write a function h whose graph is a translation 2 units to the

1.2 ­ Transformations of Linear and Absolute Value Functions

Part 1 ­ Translations and Reflections

Input Horizontal Changes

Output Vertical Changes

"Changes"• Translations• Reflections• Stretches/Shrinks

Solution

Solution:

ReflectionsReflections in the x­axis Reflections in the y­axis

To reflect a function over the x­axis (up/down), you multiply the outputs by ­1.

To reflect a function over the y­axis (left/right), you multiply the inputs by ­1.

Page 3: 1.2 - Transformations of Linear and Absolute Value Functions · 2019. 8. 27. · Writing Translations of Functions b. Write a function h whose graph is a translation 2 units to the

1.2 ­ Transformations of Linear and Absolute Value Functions

Part 1 ­ Translations and Reflections

Solution: Solution:

Extra Examples:                                                                     Rewrite the function                      after each transformation.

a.)  Translated 7 units up 

b.)  Translated 4 units left

c.)  Reflected over the y­axis

d.)  Reflected over the x­axis

1.2 p.16• #4,6,8,11­14