Question

8. Write the pre-images of 2 and 3 in the function
f = { (12, 2), (13, 3), (15, 3), (14, 2), (17, 17) }.

Answer 1

the pre images are the number on the left side this means the pre images of 2 & 3 here are 12,13,15,14

Answer 2

It is given that ,

f = { (12,2),(13,3),(15,3),(14,2),(17,17)}

Pre-image of 2 is 12 .

Pre-image of 3 is 13

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