Functions: having trouble with definition in my book  TOPIC_SOLVED

Geometric formulae, word problems, theorems and proofs, etc.

Functions: having trouble with definition in my book

Postby iceking on Thu Oct 01, 2009 1:38 pm

I have a definition for "functions" in my math book, but I don't understand it. The definition is "a relation in which each first coordinate is paired with exactly one second coordinate" Can someone explain it? :?: :confused:
User avatar
iceking
 
Posts: 25
Joined: Sat Sep 26, 2009 12:46 am

Sponsor

Sponsor
 

  TOPIC_SOLVED

Postby stapel_eliz on Thu Oct 01, 2009 2:28 pm

iceking wrote:Can someone explain it?

Got ya covered right here! :wink:
User avatar
stapel_eliz
 
Posts: 1704
Joined: Mon Dec 08, 2008 4:22 pm

Re: Functions: having trouble with definition in my book

Postby iceking on Thu Oct 01, 2009 2:30 pm

Thank you! Now I understand it! :clap: :mrgreen:
User avatar
iceking
 
Posts: 25
Joined: Sat Sep 26, 2009 12:46 am

Re: Functions: having trouble with definition in my book

Postby iceking on Fri Oct 02, 2009 1:42 pm

Now I have another definition "dependent variable" (regarding functions) the definition is: "the variable representing the second elements of the ordered pairs in a function; the outputs." Does this basically mean "The y-values in an equation regarding that function"?
User avatar
iceking
 
Posts: 25
Joined: Sat Sep 26, 2009 12:46 am

Postby stapel_eliz on Fri Oct 02, 2009 1:54 pm

Yes. The x-value is the "independent" variable: you, independently, choose the value of x. The y-value is the "dependent" variable: it depends on what you picked for x.
User avatar
stapel_eliz
 
Posts: 1704
Joined: Mon Dec 08, 2008 4:22 pm

Re:

Postby iceking on Fri Oct 02, 2009 2:02 pm

stapel_eliz wrote:Yes. The x-value is the "independent" variable: you, independently, choose the value of x. The y-value is the "dependent" variable: it depends on what you picked for x.


Thanks! :D
User avatar
iceking
 
Posts: 25
Joined: Sat Sep 26, 2009 12:46 am


Return to Geometry