ICSE Class 7 Answered
Identify which set of ordered pairs represents a mapping?
a) R1 = {(9,3), (9,-3), (36,6), (36,-6)}
b) R2 = {(a,x), (b,y), (c,x), (d,z)
c) R3 = {(18,6), (5,1), (32,16), (42,10)}
Asked by Topperlearning User | 13 Feb, 2014, 02:28: PM
Expert Answer
The options b and c represent mapping because none of the first component of any ordered pairs are repeated.
In option a the first component of the ordered pairs are repeated.
Answered by | 13 Feb, 2014, 04:28: PM
