Q1 of 41 Page 44

Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range.

{(1,3), (1,5), (2,5)}.

Since, the same first element 1 corresponds to two different images 3 and 5. Hence, this relation is not a function.


More from this chapter

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1

Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range.

{(2,1), (5,1), (8,1), (11,1), (14,1), (17,1)}

 1

Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range.

{(2,1), (4,2), (6,3), (8,4), (10,5), (12,6), (14,7)}

 2

Find the domain and range of the following real functions:

(i) f(x) = -|x|

 2

Find the domain and range of the following real functions: