Function Example 4 and 5

Example 4

Given the function f:x3x+2  , find the value of
(a) f(2)
(b) f(5)
(c) f( 1 3 )


Example 5

If f(x)= x 2 +3x+2  , express each of the following in terms of x:
(a) f(2x)
(b) f(3x+1)
(c) f( x 2 )