Page 40 - Mathematics_Form_3
P. 40

Functions


               3. Which of the following relations are   5.  The function    doubles whatever
                 functions?                               is fed into it. Fill in the missing
                  (a)           F                         outputs in the following figure.
                                                                        P
          FOR ONLINE READING ONLY










                  (b)           G


                                                       6.  Write down the ordered pairs  (x, y)
                                                          of the mapping in the following
                                                          figure.
                                                            m                       n

                                                            4                    4
                                                            3                    3
                  (c)          H
                                                            2                    2
                                                            1                    1

                                                            0                    0

                                                           -1                   -1
                                                          -2                    -2



               4.  List the coordinates of the mapping   7.  Which of the following relations are
                   in the following figure.              functions?
                                F                                                                   Mathematics for Secondary Schools
                                                         (a) (positive even number) → (its
                                                             largest prime factor)
                     Amina               17              (b) (word) → (number of letters in
                     Daina                                   that word)
                   Venance                               (c) (name) → (person)
                      Juma               14              (d) (student) → (month of his/her
                                                             birthday)
                      Name              Age (Years)      (e) (person) → (name)




                 Student\s Book Form Three          33



                                                                                          18/09/2025   09:58:51
     MATHEMATIC F3 SB.indd   33                                                           18/09/2025   09:58:51
     MATHEMATIC F3 SB.indd   33
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