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1.2.3c Function Example 4 and 5

January 22, 2022December 11, 2019 by

Example 4
Given the function

$f : x \mapsto 3 x + 2$ , find the value of
(a)

$f (2)$
(b)

$f (- 5)$
(c)

$f (\frac{1}{3})$

Example 5
If

$f (x) = x^{2} + 3 x + 2$ , express each of the following in terms of x:
(a)

$f (2 x)$
(b)

$f (3 x + 1)$
(c)

$f (x^{2})$

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