A group discussion has been held in the topic of exploring linear patterns, few questions were discussed about that patterns are as follows:
 
(i) A linear pattern in which a number is numbers increase or decrease by     amount of time.
(ii) A linear pattern can be written in the form of  
(iii) The difference between the consecutive term is
 
(iv) Taxi fair is given below
 
Distance(km) \(0\) \(1\) \(2\) \(3\)
Fair (Rs.) 15 30 35 45
                                                                                               
Is it in linear pattern?