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I. Homework from students:

pg 145, # 1- 4, 31, 39

pg 147 #35, 39, 49, 57, 61, 64

II. In notes, sketch, state domain and range.

1. f(x) = sqrt(x - 6) + 2

2. f(x) = 3x + 4

3. y = 1/(x + 5) - 2

answers

Note: asymptote ARE DRAWN on a sketch when needed.

III. inverse

f ^-1(f(x)) = f(f ^-1(x)) = x

The inverse of the function equals the function of the inverse.

The inverse and the function undo each other resulting

    in the original number.

IV. Calculator Problem: The vertical asymptote is

graphed as a part of a function even though it should not be.

    Solution: In MODE or FORMAT select DOTS rather than CONNECTED.

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I. Solve for y.

1.) x = y/4

2.) x = y + 6

3.)

Answers

 

II. Comment on odd and even functions:

Check out the mouth.

III. Inverse Functions

    Before reviewing the material below, look at the notes and answers from last class.

    If you click on the graph, the inverse is displayed.

IV. Determine the inverse of each function if one exists.

1. f(x) = sqrt(x - 6) + 2

2. f(x) = 3x + 4

3. y = 1/(x + 5) - 2