Functions
When you are done with this
section, you will be able to do the following:
- Determine if a relationship is a function
- Use function notation
- Evaluate a function
- Algebraically determine the domain of a
function
- Solve an application related to functions
- Interpret input and output of real-life function problems
Function On-line Notes
Additional General Functions On-line
Resources:
Function Notation On-line Notes:
Additional Function Notation On-line
Resources:
Evaluate Functions On-line Notes:
Additional Evaluate Functions On-line
Resources:
Domain of Functions On-line Notes:
Additional Domains of Functions On-line
Resources:
Functions Homework:
The
Functions Homework contains 9 problems.
Things to remember:
- Domains must be written as
intervals. [ and ] indicate that the endpoint is included.
( and ) indicate that the endpoint is not included. Click
here for a reveiw of interval notation.
- The number or expression in
parentheses after the function name in function notation is input into
the function in place of the variable (i.e.: f(3) means
put the number 3 into the function f everywhere there is a
variable.).
- f(x) = 0 means replace
the function name f(x) with 0 and solve for the variable.
Homework examples:
also-recommended Homework examples:
- Example 3: similar to problem 3 in
also-recommended problems
- Example 4: similar to problem 4 in
also-recommended problems
Keep in mind that it is recommended that you also complete all the
problems in the set called "also
recommended" with the same number as the Functions Homework. There are
many different ways to ask the same questions. This will allow
you to see additional problems that are related to this topic.
© 2005 Elizabeth E. K. Jones and the ASU Department of
Mathematics and Statistics - All rights reserved.
