Mapping And Functions

• Concept of mapping and function
• Domain, Co-domain of function
• Types of mapping.

READING ASSIGNMENT: Read Mapping, Further Mathematics Project 2, and page 25- 35.

WEEKEND ASSIGNMENT

      1. If every element in the domain have different image I the co-domain, such type of mapping is called ——-

          (a) constant mapping (b) onto mapping (c) one- to – one mapping

      2.  A mapping f is called —— if every element of the co-domain is an image of at least one element in the domain

           (a) constant mapping (b) onto mapping (c) one- to – one mapping

      3.  Given f(y) = p^x and f (3) = 81, determine the value of x.

             A    -4                 B   27                  C 4

      4   The rule that assign an element to two or non-empty set is (a) logic (b) set (c) mapping

      5    If f is a function defined by f(x) = 2x² – 3, find f(-3).

             A. -15              B 18                C. 15