Graphing exponential functions. How much do you really need to know? How can exponential functions be used in word problem formats?

Interesting entry task dealing with inverses. Dude, seriously, you need to look at the practice midterm. Also, we graphed exponential functions.

Not much today. The start of exponential functions. Your second midterm is going to be late next week. Please check out the practice test on the PCC website.

Reality check for composition, inverses, and rational functions. What is your comfortable level?

We used composition in order to verify that two functions were in truth inverses of each other.

Homework:  4.2  67, 69, 73, 77, 89, 91

Friday April 20

How do you make an inverse function from a table?  graph?  When is an inverse a function?

Thursday April 19

How do you find the domain for a function created by composition?  In addition, how do you "decompose" a function into f(x) and g(x)?

Homework:  4.1  53-58, 61, 62, 65


thurs apr 19 -

Wednesday, April 18

Composition today.  We composed functions via a table of values, a graph of functions, and functions written in algebraic form.

Homework:  4.1  33-43 odds

Handout for Tuesday's homework

Write the rational function

handout for homework from Tuesday

Match the graph with the rational function

Tuesday April 17

Match the function with the graph based upon asymptotes and intercepts

Homework:  2 handouts which are uploaded on the main blog page

Monday April 16

Complete oblique asymptote discussion. 


No Homework
What???  Really, no homework

Friday April 13

Complete discussion of horizontal asymptotes.  Read about oblique asymptotes in 3.2 before attempting homework.

Homework:  3.2  25, 27, 29 do part e, 45-53 odd

Thursday April 12

What are the key characteristics of rational functions?  What information can you get from the function?  What information can you get from the graph?  How do you graph simple rational functions?


thurs apr 12 -

Wednesday April 11

How do you write a polynomial based upon x-intercepts?  What the heck is multiplicity?  Why do I care?

Homework:  3.1  41-55 odds

Tuesday, April 10

Polynomial functions:  degree, coefficients, and graphs

Homework:  3.1  15-39 odds

Friday, April 6

We moved functions with all transformations with emphasis on reflecting on x and y axis.  Chapter 1 test Monday.  Good luck.  Make sure you check the Math 111 PCC practice test.

Homework  1.5  39 - 61 every other odd, 69, 71

Wednesday, April 4

We graphed piece wise functions.  Look out for f(x) = int(x).  This one bugs me.

Homework 1.4  25-28, 30-34

Tuesday, April 3

Concave up vs. concave down....what is it and where do you find it?  In addition, here are the functions you need to be comfortable graphing.  Look out there are at least 9 of them.

Homework:  graph f(x) = 1/x by table of values


tues apr 3 -

Monday, April 2

When is a function increasing?  decreasing?  Where are the maximum?  minimums?

Homework:  1.3  21-39 odd, 53-59 odd