Let A- (Blanche, Rose, Sophia, Dorothy), B-(Red, Blue, Yellow) and consider the function f: A B defined as follows: f(x) Blanche Red Rose Blue Sophia Yellow Dorothy Blue 1. Is the functionf injective? Justify your answer. 2. Is the function f surjective? Justify your answer. 3. Is the function f bijective? Justify your answer.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Let A = (Blanche, Rose, Sophia, Dorothy), B=[Red, Blue, Yellow) and consider the function f: A B
defined as follows:
f(x)
Blanche
Red
Rose
Blue
Sophia
Yellow
Dorothy
Blue
1. Is the function f injective? Justify your answer.
2. Is the function f surjective? Justify your answer.
3. Is the function f bijective? Justify your answer.
Transcribed Image Text:Let A = (Blanche, Rose, Sophia, Dorothy), B=[Red, Blue, Yellow) and consider the function f: A B defined as follows: f(x) Blanche Red Rose Blue Sophia Yellow Dorothy Blue 1. Is the function f injective? Justify your answer. 2. Is the function f surjective? Justify your answer. 3. Is the function f bijective? Justify your answer.
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