Problem :
If f (x) = 3x  2, what is the value of:
a) f (1)
b) f (2)
c) f ( 4)
d) f (z)
e) f (2x)
f) f (2x + 1)
a) 1
b) 4
c) 14
d)
3z  2
e)
6x  2
f)
6x + 1
Problem :
If f (x) = 3x^{2} + 4x  9, what is the value of:
a) f (2)
b) f ( 2)
c) f ()
d) f (4x)
e) f (6  x)
a) 11
b) 5
c)

d)
48x^{2} + 16x  9
e)
3x^{2}  40x + 123
Problem :
If f (x) = 2x + 4 and g(x) = 4x^{2}  2x, what is the value of:
a) (f + g)(2)
b) (f + g)( 1)
c) (f + g)(0)
d) (f + g)(x)
e) (f + g)(2x)
a) 20
b) 8
c) 4
d)
4x^{2} + 4
e)
16x^{2} + 4
Problem :
If f (x) = x  4 and g(x) = x + 6, what is the value of:
a) (f + g)(3)
b) (f + g)( 5)
c) (f + g)(x)
d) (f + g)(x + 7)
a) 8
b) 8
c)
2x + 2
d)
2x + 16
Problem :
If f (x) = 4x  9 and g(x) = 2x  3, what is the value of:
a) (f  g)(5)
b) (g  f )(5)
c) (f  g)(x)
d) (g  f )(x)
a) 4
b) 4
c)
2x  6
d)
2x + 6