7-23 Composition and Inverses of Functions - with solutions

16
Functions Review Ex: Title: Function Notation Review (1 of 16)

Transcript of 7-23 Composition and Inverses of Functions - with solutions

Page 1: 7-23 Composition and Inverses of Functions - with solutions

Functions Review

Ex:

Title: Function Notation Review (1 of 16)

Page 2: 7-23 Composition and Inverses of Functions - with solutions

Section 10-3: Composition of Functions

Given: and

Title: Section 10­3: Composition (2 of 16)

Page 3: 7-23 Composition and Inverses of Functions - with solutions

Given: and

Find: 1. 2.

3.

Title: Examples (3 of 16)

Page 4: 7-23 Composition and Inverses of Functions - with solutions

Given: and

Find: 1.

3.

2.

4.

Note:

Title: Practice (4 of 16)

Page 5: 7-23 Composition and Inverses of Functions - with solutions

p.465 (Oral) #1-4

p.466 (Written)#1-6

Title: Textbook Problems (5 of 16)

Page 6: 7-23 Composition and Inverses of Functions - with solutions

Section 10-3: Inverse Functions

Given: and

Find:

Title: Section 10­3: Inverses (6 of 16)

Page 7: 7-23 Composition and Inverses of Functions - with solutions

2 functions whose composition is x are called inverses

usually written as 

which does NOT mean

If 2 functions are inverses:

the point (a, b) is on the graph of f (x)

the point (b, a) is on the graph of f ­1(x) = g (x)

Title: Definition of Inverse (7 of 16)

Page 8: 7-23 Composition and Inverses of Functions - with solutions

Title: Worksheet (8 of 16)

Page 9: 7-23 Composition and Inverses of Functions - with solutions

To find the inverse of a function:1.  switch x and y2.  solve for y

Title: Finding the Inverse (9 of 16)

Page 10: 7-23 Composition and Inverses of Functions - with solutions

p.465 (Oral) #5-7

p.466 (Written)#7-10 only tell if the inverse is a

function#11-14 find the inverse and graph

both on the calculator#15-22 graph them on the

calculator

Title: Textbook Problems (10 of 16)

Page 11: 7-23 Composition and Inverses of Functions - with solutions

Section 10-3: Definition of Logarithmsinverse of an exponential function is a logarithmic function

Title: Section 10­3: Def of Log (11 of 16)

Page 12: 7-23 Composition and Inverses of Functions - with solutions

(3,8) is on f (x)

(8,3) is on f ­1(x)

Exponential Logarithmic

Title: Log examples (12 of 16)

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Title: Properties of Logs (13 of 16)

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Write in exponential form.

1. 2.

3.

Title: Write in exponential form (14 of 16)

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Write in logarithmic form.

1. 2.

3.

Title: Write in logarithmic form (15 of 16)

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p.470 (Oral)#1-8

Title: Textbook Problems (16 of 16)