Five marks example problems IV — task. Mathematics State Board, Class 10.

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Let

$f$ be a function

$f: \mathbb{N} \rightarrow \mathbb{N}$ defined by

$f(x) = 3x + 2$ ,

$x \in \mathbb{N}$ .

(i) Find the images of

$1$ ,

$2$ ,

$3$ .

(ii) Find the pre-images of

$29$ ,

$53$ .

(iii) Identify the type of function.

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