2. Let f be the function from {a, b, c, d, e} to {1,2,3,4} with f(a) = 3, f(b) = 1, f(c) = 2, f(d) = 4 and f(e) = 2. a. Is the function f one-to-one? Justify your answer. b. Is the function f onto? Justify your answer.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.9: Combining Functions
Problem 49HP
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INSTRUCTION: Prove or disprove
2.
Let f be the function from {a, b, c, d, e} to {1,2,3,4} with f(a) = 3, f(b) =
1, f(c) = 2, f(d) = 4 and f(e) = 2.
a. Is the function f one-to-one? Justify your answer.
b. Is the function f onto? Justify your answer.
Transcribed Image Text:INSTRUCTION: Prove or disprove 2. Let f be the function from {a, b, c, d, e} to {1,2,3,4} with f(a) = 3, f(b) = 1, f(c) = 2, f(d) = 4 and f(e) = 2. a. Is the function f one-to-one? Justify your answer. b. Is the function f onto? Justify your answer.
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