# Topic 3 - graphs or symbols Words provide a descriptive...

This preview shows pages 1–2. Sign up to view the full content.

*VARIABLES AND FUNCTIONS* In this topic you began your exploration of variables and functions. A variable is some quantity that changes, or it can be the letter that represents the changing quantity. A function exists when two variables have a dependent relationship. Changes in the independent variable cause changes in the dependent variable in a systematic way. The set of values for the independent variable is the domain of the function. The set of values for the dependent variable is the range of the function **You can represent the functional relationship between variables by using words, tables,

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: graphs, or symbols. Words provide a descriptive version of the situation and the relationship. The cost of roses from Flower Power depends on the number of roses purchased. Symbols provide a way to write a function rule to represent the relationship. Graphs provide a visual illustration of the dependency between the variables. Tables provide a numeric representation of the relationship between the variables. Cost of Roses from Flower Power Number ordered Process Cost in dollars 12 60 + 0.50(12)66 24 60 + 0.50(24)72 36 60 + 0.50(36)78 32 60 + 0.50(32)76 43 60 + 0.50(43)81.50...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern