Math Refresher STUDY 7.jpg - A map fig T is injecttre or one-to-one"If for a x x es whenever x 7x2 then who fixis f xz In other words a graph is

Math Refresher STUDY 7.jpg - A map fig T is injecttre or...

This preview shows page 1 out of 1 page.

Image of page 1

You've reached the end of your free preview.

Want to read the whole page?

Unformatted text preview: A map fig - T is injecttre or one-to-one "If for a x x, es whenever x, 7x2 then who fixis / f ( xz ) ." In other words, a graph is one-to-one if it passes the horizontal time test . juriective I may Is surjective if it's image f (5) = T; if for bry y CT there exists in & ES sick that F ( x ) = 4. Those chements X E S with F-( 2):y are inverse images of y. In other words, a graph is surjective if every I has its y according to fo and * Breckin means the graph is both injecting and it passes the horizontal hime lest. Composition ( 9 0 f ) ( x ) : 5 9 ( f ( x ) ) NOT commutative ( q o f ] ( ) * ( fog ) ( x ) Invertible functions - find them by switching y and x. If it's a parable it needs to restricted....
View Full Document

  • Fall '08
  • Composition, Bijective, Surjective, Injective, Invertible Functions

What students are saying

  • Left Quote Icon

    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.

    Student Picture

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

  • Left Quote Icon

    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.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    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.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask You can ask ( soon) You can ask (will expire )
Answers in as fast as 15 minutes