Neco 2021 Further Mathematics Question 8

Practice objective / multiple choice question 8 from the 2021 Neco Further Mathematics examination.

Neco 2021 Further Mathematics Objective / Multiple Choice Easy Difficulty

Question 8 NECO • 2021 • FURTHER_MATHEMATICS • objective

Let \(A=\{1,2,3,4\}\) and \(B=\{a,b,c\}\). A function \(f:A\to B\) is defined by \(f(1)=a,\; f(2)=b,\; f(3)=c,\; f(4)=a\). Determine the image of the subset \(\{2,4\}\) under \(f\) and state whether \(f\) is onto.

A. Image = \\{b\\}; \\; f \\text{ is onto}

B. Image = \\{a,b,c\\}; \\; f \\text{ is not onto}

C. Image = \\{a,c\\}; \\; f \\text{ is not onto}

Correct Answer D. Image = \{a,b\}; \; f \text{ is onto}

Correct Answer

Correct Option:

Image = \{a,b\}; \; f \text{ is onto}

This is Neco 2021 Further Mathematics Question 8. It is one of the objective questions from the 2021 Neco Further Mathematics examination.

Difficulty level: Easy .

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