1. My Three Functions By David Bishop

2. The Square Root Function

3. Used http://rechneronline.de/function-graphs/ to get the graph.http://rechneronline.de/function-graphs/ xf(x) 00 11 21.414213562 31.732050808 42 52.236067977 62.449489743 72.645751311 82.828427125 93 103.16227766

4. The Square Root Function VariablesDomain and range x is the independent variable ◦x determines the output of the square root function. f(x) or y is the dependent variable ◦We need to know what x is before we can know f(x) or y. Domain ◦All nonnegative real numbers Range ◦All nonnegative real numbers

5. The Fibonacci Function

6. Picture and equation from http://www.fibonacci.nam e/ http://www.fibonacci.nam e/ The Fibonacci Sequence A series of numbers that start with 0,1 The next number in the series is always determined by the sum of the previous two numbers The Fibonacci Function Returns the nth number of the Fibonacci Sequence Leonardo Pisano Bigollo (Fibonacci)

7. The Fibonacci Function VariablesDomain and range n is the independent variable F(n), the Fibonacci number, is the dependent variable ◦We need to know what n is in order to know what Fibonacci number to obtain. Domain ◦All nonnegative integers Range ◦The numbers of the Fibonacci sequence:  0,1,1,2,3,5,8,13…

8. The Fibonacci Function nF(n) 00 11 21 32 43 55 68 713 821 934 1055

9. The Fibonacci Function Some Uses of the Fibonacci Function Primarily used in a branch of mathematics known as Number Theory The financial world uses Fibonacci numbers to study trends in the market. Some patterns in nature have been found to be connected to the Fibonacci sequence

10. The Visitors Function

11. Hoping For Something To Hope For An amateur blog Subjects covered include movies, music, and television Established in January 2008 Member #149 of the Large Association of Movie BlogsLarge Association of Movie Blogs

12. The Visitors Function Hoping For Something To Hope For A record has been made of the number of visitors to the blog each day. We can plot the total number of visitors for each month.

13. The Visitors Function VariablesDomain and Range Time is the independent variable The number of visitors is the dependent variable Domain ◦All months that the website is/was online. Range ◦Almost all nonnegative integers  Limited by population and days in a month

14. The Visitors Function