Function Example 4 and 5

Example 4

Given the function f : x 3 x + 2  , find the value of
(a) f ( 2 )
(b) f ( 5 )
(c) f ( 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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