## Awesome graph stuff.....

Here's the excel file you can play with to create your own Lissajous curves.

lissajous.xlsx | |

File Size: | 289 kb |

File Type: | xlsx |

## What to expect on the quiz on Monday, 10-22-12

You will be asked to add, subtract, multiply, divide (and give domain), and compose functions, both in terms of x and evaluated at some value of x. You will also be asked to find inverses of functions and add, subtract, multiply, divide, and compose functions with inverses, with both generic x's and evaluated at certain values of x. The following practice problems would be quite useful:

-ALL the example problems in 1.8 and 1.9

-Exercises 13, 17, 21, 31, 33 on page 89

-Exercises 41, 42 on page 90

-Exercises 17, 19, 23 on page 99

-Exercises 55, 57, 61 on page 100

-ALL the example problems in 1.8 and 1.9

-Exercises 13, 17, 21, 31, 33 on page 89

-Exercises 41, 42 on page 90

-Exercises 17, 19, 23 on page 99

-Exercises 55, 57, 61 on page 100

## Inverse functions videos (chapter 1.9)

http://patrickjmt.com/inverse-functions-the-basics/

http://patrickjmt.com/finding-the-inverse-of-a-function/

http://patrickjmt.com/finding-the-inverse-of-a-function-or-showing-one-does-not-exist-ex-2/

http://patrickjmt.com/finding-the-inverse-of-a-function/

http://patrickjmt.com/finding-the-inverse-of-a-function-or-showing-one-does-not-exist-ex-2/

## Help on HW 1.5c (listed in book as chapter 2.7)

Patrick has some nice videos on quadratic inequalities. He doesn't use the tic-tac-toe method, but you can see how it's basically the same thing.

http://patrickjmt.com/solving-quadratic-inequalities-the-basics/

http://patrickjmt.com/solving-quadratic-inequalities-ex-2/

http://patrickjmt.com/solving-quadratic-inequalities-ex-3/

http://patrickjmt.com/solving-a-rational-inequality-ex-1/

http://patrickjmt.com/solving-a-rational-inequality-ex-2/

http://patrickjmt.com/solving-quadratic-inequalities-the-basics/

http://patrickjmt.com/solving-quadratic-inequalities-ex-2/

http://patrickjmt.com/solving-quadratic-inequalities-ex-3/

http://patrickjmt.com/solving-a-rational-inequality-ex-1/

http://patrickjmt.com/solving-a-rational-inequality-ex-2/

## How to get your stamp on Friday 9-28

Complete the two exercises shown on these two patrickjmt videos:

http://patrickjmt.com/finding-the-domain-of-an-expression-involving-fractions-ex-2/ (top of back page)

http://patrickjmt.com/finding-domains-of-functions-involving-radicals-square-roots-to-be-more-precise-ex-2/ (bottom of back page)

http://patrickjmt.com/finding-the-domain-of-an-expression-involving-fractions-ex-2/ (top of back page)

http://patrickjmt.com/finding-domains-of-functions-involving-radicals-square-roots-to-be-more-precise-ex-2/ (bottom of back page)

## What to expect on Quiz #2 (Thursday, 9-20-12)

Quiz 2 review:

Topics on this quiz will include:

Midpoint and Pythagorean theorems

Distance formula

Finding intercepts

Slope

Writing line equations in slope-intercept and in point-slope forms, given either two points or a point and a slope.

Basic function stuff – what is a function, how to evaluate composite functions, determining domain and range.

If you can do these problems, you will be ok:

Page 22 #17

Page 23 #47

Page 34 #15, 21, 25

Page 35 #39, 49, 55

Page 49 #13, 23, 31

Page 50 #53, 55, 65, 69

(The quiz won't be that long - those are just the possible kinds of questions you might see)

Topics on this quiz will include:

Midpoint and Pythagorean theorems

Distance formula

Finding intercepts

Slope

Writing line equations in slope-intercept and in point-slope forms, given either two points or a point and a slope.

Basic function stuff – what is a function, how to evaluate composite functions, determining domain and range.

If you can do these problems, you will be ok:

Page 22 #17

Page 23 #47

Page 34 #15, 21, 25

Page 35 #39, 49, 55

Page 49 #13, 23, 31

Page 50 #53, 55, 65, 69

(The quiz won't be that long - those are just the possible kinds of questions you might see)

## What to expect on Quiz #1 (Monday, 9-10-12)

Last week you reviewed rectangular coordinates - properties of quadrants, distance and midpoint formulas, and scatter plots. I suggest that you read over chapter 1.1 and especially work the example problems. If you can do exercises #15, 19, 25, 41 (example #4 is helpful here), 47, and 61, you will be in great shape. Your quiz will have three questions and should take about 8 minutes. No notes, no book.