Evaluate Inverses

Inverse Function

by JadeAnthony Dosdos

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​Lesson Objectives:

​At the end of the lesson, student should be able to:

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​-Define inverses function.

​-Solve inverses functions.

​Warm-up:

Multiple Choice

$$f\left(-2\right)=x^2+4$$  

• 8

• 0

• 10

• None of the above

Multiple Choice

$$f\left(0\right)=3x-3$$  

• 9

• 3

• -3

• 0

​Core Concepts:

​Inverse functions are functions that undo each other.

​

​Common example in real life example is, currency conversions.

​

​1USD = 50 PHP

​1USD = 0.86 EUR

Open Ended

Write some examples of inverse functions in real life situation.

​Example:

Multiple Choice

Find the inverse function of  $$f\left(x\right)=x-1$$  

• 2x+1

• x+1

• x

• x-3

Multiple Choice

Find the inverse function in this given: $$f\left(x\right)=6x-12$$  

• $$\frac{1}{6}x+2$$  

• $$\frac{x+12}{6}$$  

• All of the above

• None of the above