The number N (in thousands) of cellular phone subscribers in Malaysia is shown in the table. (Midyear

Question:

The number N (in thousands) of cellular phone subscribers in Malaysia is shown in the table. (Midyear estimates are given.)
(a) Use the data to sketch a rough graph of N as a function of
(b) Use your graph to estimate the number of cell-phone subscribers in Malaysia at midyear in 1994 and 1996.